diff --git a/package-lock.json b/package-lock.json
index fd78f71..8cf0cfe 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -110,12 +110,14 @@
     "arr-flatten": {
       "version": "1.1.0",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/arr-flatten/download/arr-flatten-1.1.0.tgz",
-      "integrity": "sha1-NgSLv/TntH4TZkQxbJlmnqWukfE="
+      "integrity": "sha1-NgSLv/TntH4TZkQxbJlmnqWukfE=",
+      "optional": true
     },
     "arr-union": {
       "version": "3.1.0",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/arr-union/download/arr-union-3.1.0.tgz",
-      "integrity": "sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ="
+      "integrity": "sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=",
+      "optional": true
     },
     "array-includes": {
       "version": "3.0.3",
@@ -170,7 +172,8 @@
     "assign-symbols": {
       "version": "1.0.0",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/assign-symbols/download/assign-symbols-1.0.0.tgz",
-      "integrity": "sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c="
+      "integrity": "sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=",
+      "optional": true
     },
     "ast-types": {
       "version": "0.9.6",
@@ -204,7 +207,8 @@
     "atob": {
       "version": "2.1.2",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/atob/download/atob-2.1.2.tgz",
-      "integrity": "sha1-bZUX654DDSQ2ZmZR6GvZ9vE1M8k="
+      "integrity": "sha1-bZUX654DDSQ2ZmZR6GvZ9vE1M8k=",
+      "optional": true
     },
     "aws-sign2": {
       "version": "0.7.0",
@@ -1023,6 +1027,7 @@
       "version": "0.11.2",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/base/download/base-0.11.2.tgz",
       "integrity": "sha1-e95c7RRbbVUakNuH+DxVi060io8=",
+      "optional": true,
       "requires": {
         "cache-base": "^1.0.1",
         "class-utils": "^0.3.5",
@@ -1037,6 +1042,7 @@
           "version": "1.0.0",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/define-property/download/define-property-1.0.0.tgz",
           "integrity": "sha1-dp66rz9KY6rTr56NMEybvnm/sOY=",
+          "optional": true,
           "requires": {
             "is-descriptor": "^1.0.0"
           }
@@ -1045,6 +1051,7 @@
           "version": "1.0.0",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-accessor-descriptor/download/is-accessor-descriptor-1.0.0.tgz",
           "integrity": "sha1-FpwvbT3x+ZJhgHI2XJsOofaHhlY=",
+          "optional": true,
           "requires": {
             "kind-of": "^6.0.0"
           }
@@ -1053,6 +1060,7 @@
           "version": "1.0.0",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-data-descriptor/download/is-data-descriptor-1.0.0.tgz",
           "integrity": "sha1-2Eh2Mh0Oet0DmQQGq7u9NrqSaMc=",
+          "optional": true,
           "requires": {
             "kind-of": "^6.0.0"
           }
@@ -1061,6 +1069,7 @@
           "version": "1.0.2",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-descriptor/download/is-descriptor-1.0.2.tgz",
           "integrity": "sha1-OxWXRqZmBLBPjIFSS6NlxfFNhuw=",
+          "optional": true,
           "requires": {
             "is-accessor-descriptor": "^1.0.0",
             "is-data-descriptor": "^1.0.0",
@@ -1070,12 +1079,14 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/isobject/download/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         },
         "kind-of": {
           "version": "6.0.2",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/kind-of/download/kind-of-6.0.2.tgz",
-          "integrity": "sha1-ARRrNqYhjmTljzqNZt5df8b20FE="
+          "integrity": "sha1-ARRrNqYhjmTljzqNZt5df8b20FE=",
+          "optional": true
         }
       }
     },
@@ -1199,6 +1210,7 @@
       "version": "1.0.1",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/cache-base/download/cache-base-1.0.1.tgz",
       "integrity": "sha1-Cn9GQWgxyLZi7jb+TnxZ129marI=",
+      "optional": true,
       "requires": {
         "collection-visit": "^1.0.0",
         "component-emitter": "^1.2.1",
@@ -1214,7 +1226,8 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/isobject/download/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
       }
     },
@@ -1279,6 +1292,7 @@
       "version": "0.3.6",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/class-utils/download/class-utils-0.3.6.tgz",
       "integrity": "sha1-+TNprouafOAv1B+q0MqDAzGQxGM=",
+      "optional": true,
       "requires": {
         "arr-union": "^3.1.0",
         "define-property": "^0.2.5",
@@ -1290,6 +1304,7 @@
           "version": "0.2.5",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/define-property/download/define-property-0.2.5.tgz",
           "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+          "optional": true,
           "requires": {
             "is-descriptor": "^0.1.0"
           }
@@ -1297,7 +1312,8 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/isobject/download/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
       }
     },
@@ -1328,6 +1344,7 @@
       "version": "1.0.0",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/collection-visit/download/collection-visit-1.0.0.tgz",
       "integrity": "sha1-S8A3PBZLwykbTTaMgpzxqApZ3KA=",
+      "optional": true,
       "requires": {
         "map-visit": "^1.0.0",
         "object-visit": "^1.0.0"
@@ -1379,7 +1396,8 @@
     "component-emitter": {
       "version": "1.3.0",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/component-emitter/download/component-emitter-1.3.0.tgz",
-      "integrity": "sha1-FuQHD7qK4ptnnyIVhT7hgasuq8A="
+      "integrity": "sha1-FuQHD7qK4ptnnyIVhT7hgasuq8A=",
+      "optional": true
     },
     "compressible": {
       "version": "2.0.17",
@@ -1456,7 +1474,8 @@
     "copy-descriptor": {
       "version": "0.1.1",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/copy-descriptor/download/copy-descriptor-0.1.1.tgz",
-      "integrity": "sha1-Z29us8OZl8LuGsOpJP1hJHSPV40="
+      "integrity": "sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=",
+      "optional": true
     },
     "core-js": {
       "version": "2.6.11",
@@ -1506,7 +1525,8 @@
     "decode-uri-component": {
       "version": "0.2.0",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/decode-uri-component/download/decode-uri-component-0.2.0.tgz",
-      "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU="
+      "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=",
+      "optional": true
     },
     "deep-equal": {
       "version": "0.0.0",
@@ -1530,6 +1550,7 @@
       "version": "2.0.2",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/define-property/download/define-property-2.0.2.tgz",
       "integrity": "sha1-1Flono1lS6d+AqgX+HENcCyxbp0=",
+      "optional": true,
       "requires": {
         "is-descriptor": "^1.0.2",
         "isobject": "^3.0.1"
@@ -1539,6 +1560,7 @@
           "version": "1.0.0",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-accessor-descriptor/download/is-accessor-descriptor-1.0.0.tgz",
           "integrity": "sha1-FpwvbT3x+ZJhgHI2XJsOofaHhlY=",
+          "optional": true,
           "requires": {
             "kind-of": "^6.0.0"
           }
@@ -1547,6 +1569,7 @@
           "version": "1.0.0",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-data-descriptor/download/is-data-descriptor-1.0.0.tgz",
           "integrity": "sha1-2Eh2Mh0Oet0DmQQGq7u9NrqSaMc=",
+          "optional": true,
           "requires": {
             "kind-of": "^6.0.0"
           }
@@ -1555,6 +1578,7 @@
           "version": "1.0.2",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-descriptor/download/is-descriptor-1.0.2.tgz",
           "integrity": "sha1-OxWXRqZmBLBPjIFSS6NlxfFNhuw=",
+          "optional": true,
           "requires": {
             "is-accessor-descriptor": "^1.0.0",
             "is-data-descriptor": "^1.0.0",
@@ -1564,12 +1588,14 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/isobject/download/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         },
         "kind-of": {
           "version": "6.0.2",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/kind-of/download/kind-of-6.0.2.tgz",
-          "integrity": "sha1-ARRrNqYhjmTljzqNZt5df8b20FE="
+          "integrity": "sha1-ARRrNqYhjmTljzqNZt5df8b20FE=",
+          "optional": true
         }
       }
     },
@@ -2069,6 +2095,7 @@
       "version": "3.0.2",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/extend-shallow/download/extend-shallow-3.0.2.tgz",
       "integrity": "sha1-Jqcarwc7OfshJxcnRhMcJwQCjbg=",
+      "optional": true,
       "requires": {
         "assign-symbols": "^1.0.0",
         "is-extendable": "^1.0.1"
@@ -2078,6 +2105,7 @@
           "version": "1.0.1",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-extendable/download/is-extendable-1.0.1.tgz",
           "integrity": "sha1-p0cPnkJnM9gb2B4RVSZOOjUHyrQ=",
+          "optional": true,
           "requires": {
             "is-plain-object": "^2.0.4"
           }
@@ -2210,7 +2238,8 @@
     "for-in": {
       "version": "1.0.2",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/for-in/download/for-in-1.0.2.tgz",
-      "integrity": "sha1-gQaNKVqBQuwKxybG4iAMMPttXoA="
+      "integrity": "sha1-gQaNKVqBQuwKxybG4iAMMPttXoA=",
+      "optional": true
     },
     "for-own": {
       "version": "0.1.5",
@@ -2245,6 +2274,7 @@
       "version": "0.2.1",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/fragment-cache/download/fragment-cache-0.2.1.tgz",
       "integrity": "sha1-QpD60n8T6Jvn8zeZxrxaCr//DRk=",
+      "optional": true,
       "requires": {
         "map-cache": "^0.2.2"
       }
@@ -2321,7 +2351,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -2339,11 +2370,13 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -2356,15 +2389,18 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -2467,7 +2503,8 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -2477,6 +2514,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -2489,17 +2527,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -2516,6 +2557,7 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -2588,7 +2630,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -2598,6 +2641,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -2673,7 +2717,8 @@
         },
         "safe-buffer": {
           "version": "5.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -2703,6 +2748,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -2720,6 +2766,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -2758,11 +2805,13 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },
@@ -2790,7 +2839,8 @@
     "get-value": {
       "version": "2.0.6",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/get-value/download/get-value-2.0.6.tgz",
-      "integrity": "sha1-3BXKHGcjh8p2vTesCjlbogQqLCg="
+      "integrity": "sha1-3BXKHGcjh8p2vTesCjlbogQqLCg=",
+      "optional": true
     },
     "getpass": {
       "version": "0.1.7",
@@ -2871,6 +2921,7 @@
       "version": "2.0.0",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/glob-parent/download/glob-parent-2.0.0.tgz",
       "integrity": "sha1-gTg9ctsFT8zPUzbaqQLxgvbtuyg=",
+      "optional": true,
       "requires": {
         "is-glob": "^2.0.0"
       }
@@ -2949,6 +3000,7 @@
       "version": "1.0.0",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/has-value/download/has-value-1.0.0.tgz",
       "integrity": "sha1-GLKB2lhbHFxR3vJMkw7SmgvmsXc=",
+      "optional": true,
       "requires": {
         "get-value": "^2.0.6",
         "has-values": "^1.0.0",
@@ -2958,7 +3010,8 @@
         "isobject": {
           "version": "3.0.1",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/isobject/download/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
       }
     },
@@ -2966,6 +3019,7 @@
       "version": "1.0.0",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/has-values/download/has-values-1.0.0.tgz",
       "integrity": "sha1-lbC2P+whRmGab+V/51Yo1aOe/k8=",
+      "optional": true,
       "requires": {
         "is-number": "^3.0.0",
         "kind-of": "^4.0.0"
@@ -2975,6 +3029,7 @@
           "version": "3.0.0",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-number/download/is-number-3.0.0.tgz",
           "integrity": "sha1-JP1iAaR4LPUFYcgQJ2r8fRLXEZU=",
+          "optional": true,
           "requires": {
             "kind-of": "^3.0.2"
           },
@@ -2983,6 +3038,7 @@
               "version": "3.2.2",
               "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/kind-of/download/kind-of-3.2.2.tgz",
               "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
+              "optional": true,
               "requires": {
                 "is-buffer": "^1.1.5"
               }
@@ -2993,6 +3049,7 @@
           "version": "4.0.0",
           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/kind-of/download/kind-of-4.0.0.tgz",
           "integrity": "sha1-IIE989cSkosgc3hpGkUGb65y3Vc=",
+          "optional": true,
           "requires": {
             "is-buffer": "^1.1.5"
           }
@@ -3009,9 +3066,9 @@
       }
     },
     "hosted-git-info": {
-      "version": "2.8.5",
-      "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/hosted-git-info/download/hosted-git-info-2.8.5.tgz",
-      "integrity": "sha1-dZz88sTRVq3lmwst+r3cQqa5xww="
+      "version": "2.8.9",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.9.tgz",
+      "integrity": "sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw=="
     },
     "http-browserify": {
       "version": "0.1.14",
@@ -3137,6 +3194,7 @@
       "version": "0.1.6",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-accessor-descriptor/download/is-accessor-descriptor-0.1.6.tgz",
       "integrity": "sha1-qeEss66Nh2cn7u84Q/igiXtcmNY=",
+      "optional": true,
       "requires": {
         "kind-of": "^3.0.2"
       }
@@ -3158,7 +3216,8 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-buffer/download/is-buffer-1.1.6.tgz",
-      "integrity": "sha1-76ouqdqg16suoTqXsritUf776L4="
+      "integrity": "sha1-76ouqdqg16suoTqXsritUf776L4=",
+      "optional": true
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@@ -3169,6 +3228,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-data-descriptor/download/is-data-descriptor-0.1.4.tgz",
       "integrity": "sha1-C17mSDiOLIYCgueT8YVv7D8wG1Y=",
+      "optional": true,
       "requires": {
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       }
@@ -3182,6 +3242,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-descriptor/download/is-descriptor-0.1.6.tgz",
       "integrity": "sha1-Nm2CQN3kh8pRgjsaufB6EKeCUco=",
+      "optional": true,
       "requires": {
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         "is-data-descriptor": "^0.1.4",
@@ -3191,7 +3252,8 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/kind-of/download/kind-of-5.1.0.tgz",
-          "integrity": "sha1-cpyR4thXt6QZofmqZWhcTDP1hF0="
+          "integrity": "sha1-cpyR4thXt6QZofmqZWhcTDP1hF0=",
+          "optional": true
         }
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@@ -3213,12 +3275,14 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-extendable/download/is-extendable-0.1.1.tgz",
-      "integrity": "sha1-YrEQ4omkcUGOPsNqYX1HLjAd/Ik="
+      "integrity": "sha1-YrEQ4omkcUGOPsNqYX1HLjAd/Ik=",
+      "optional": true
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-      "integrity": "sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA="
+      "integrity": "sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA=",
+      "optional": true
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@@ -3240,6 +3304,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-glob/download/is-glob-2.0.1.tgz",
       "integrity": "sha1-0Jb5JqPe1WAPP9/ZEZjLCIjC2GM=",
+      "optional": true,
       "requires": {
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@@ -3279,6 +3344,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-plain-object/download/is-plain-object-2.0.4.tgz",
       "integrity": "sha1-LBY7P6+xtgbZ0Xko8FwqHDjgdnc=",
+      "optional": true,
       "requires": {
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@@ -3286,7 +3352,8 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/isobject/download/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
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@@ -3470,6 +3537,7 @@
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       "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
+      "optional": true,
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@@ -3519,12 +3587,14 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/map-cache/download/map-cache-0.2.2.tgz",
-      "integrity": "sha1-wyq9C9ZSXZsFFkW7TyasXcmKDb8="
+      "integrity": "sha1-wyq9C9ZSXZsFFkW7TyasXcmKDb8=",
+      "optional": true
     },
     "map-visit": {
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/map-visit/download/map-visit-1.0.0.tgz",
       "integrity": "sha1-7Nyo8TFE5mDxtb1B8S80edmN+48=",
+      "optional": true,
       "requires": {
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       }
@@ -3591,6 +3661,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/mixin-deep/download/mixin-deep-1.3.2.tgz",
       "integrity": "sha1-ESC0PcNZp4Xc5ltVuC4lfM9HlWY=",
+      "optional": true,
       "requires": {
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         "is-extendable": "^1.0.1"
@@ -3600,6 +3671,7 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/is-extendable/download/is-extendable-1.0.1.tgz",
           "integrity": "sha1-p0cPnkJnM9gb2B4RVSZOOjUHyrQ=",
+          "optional": true,
           "requires": {
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@@ -3731,6 +3803,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/normalize-path/download/normalize-path-2.1.1.tgz",
       "integrity": "sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=",
+      "optional": true,
       "requires": {
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@@ -3765,6 +3838,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/object-copy/download/object-copy-0.1.0.tgz",
       "integrity": "sha1-fn2Fi3gb18mRpBupde04EnVOmYw=",
+      "optional": true,
       "requires": {
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         "define-property": "^0.2.5",
@@ -3775,6 +3849,7 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/define-property/download/define-property-0.2.5.tgz",
           "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+          "optional": true,
           "requires": {
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@@ -3795,6 +3870,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/object-visit/download/object-visit-1.0.1.tgz",
       "integrity": "sha1-95xEk68MU3e1n+OdOV5BBC3QRbs=",
+      "optional": true,
       "requires": {
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@@ -3802,7 +3878,8 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/isobject/download/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
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@@ -3831,6 +3908,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/object.pick/download/object.pick-1.3.0.tgz",
       "integrity": "sha1-h6EKxMFpS9Lhy/U1kaZhQftd10c=",
+      "optional": true,
       "requires": {
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@@ -3838,7 +3916,8 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/isobject/download/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
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@@ -3970,7 +4049,8 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/pascalcase/download/pascalcase-0.1.1.tgz",
-      "integrity": "sha1-s2PlXoAGym/iF4TS2yK9FdeRfxQ="
+      "integrity": "sha1-s2PlXoAGym/iF4TS2yK9FdeRfxQ=",
+      "optional": true
     },
     "path-exists": {
       "version": "3.0.0",
@@ -4239,7 +4319,8 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/array-unique/download/array-unique-0.3.2.tgz",
-          "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg="
+          "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=",
+          "optional": true
         },
         "braces": {
           "version": "2.3.2",
@@ -4479,7 +4560,8 @@
         "kind-of": {
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/kind-of/download/kind-of-6.0.2.tgz",
-          "integrity": "sha1-ARRrNqYhjmTljzqNZt5df8b20FE="
+          "integrity": "sha1-ARRrNqYhjmTljzqNZt5df8b20FE=",
+          "optional": true
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         "micromatch": {
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@@ -4573,6 +4655,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/regex-not/download/regex-not-1.0.2.tgz",
       "integrity": "sha1-H07OJ+ALC2XgJHpoEOaoXYOldSw=",
+      "optional": true,
       "requires": {
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         "safe-regex": "^1.1.0"
@@ -4611,17 +4694,20 @@
     "remove-trailing-separator": {
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/remove-trailing-separator/download/remove-trailing-separator-1.1.0.tgz",
-      "integrity": "sha1-wkvOKig62tW8P1jg1IJJuSN52O8="
+      "integrity": "sha1-wkvOKig62tW8P1jg1IJJuSN52O8=",
+      "optional": true
     },
     "repeat-element": {
       "version": "1.1.3",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/repeat-element/download/repeat-element-1.1.3.tgz",
-      "integrity": "sha1-eC4NglwMWjuzlzH4Tv7mt0Lmsc4="
+      "integrity": "sha1-eC4NglwMWjuzlzH4Tv7mt0Lmsc4=",
+      "optional": true
     },
     "repeat-string": {
       "version": "1.6.1",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/repeat-string/download/repeat-string-1.6.1.tgz",
-      "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc="
+      "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
+      "optional": true
     },
     "repeating": {
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@@ -4683,7 +4769,8 @@
     "resolve-url": {
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/resolve-url/download/resolve-url-0.2.1.tgz",
-      "integrity": "sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo="
+      "integrity": "sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo=",
+      "optional": true
     },
     "restore-cursor": {
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@@ -4697,7 +4784,8 @@
     "ret": {
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-      "integrity": "sha1-uKSCXVvbH8P29Twrwz+BOIaBx7w="
+      "integrity": "sha1-uKSCXVvbH8P29Twrwz+BOIaBx7w=",
+      "optional": true
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@@ -4729,6 +4817,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/safe-regex/download/safe-regex-1.1.0.tgz",
       "integrity": "sha1-QKNmnzsHfR6UPURinhV91IAjvy4=",
+      "optional": true,
       "requires": {
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       }
@@ -4809,6 +4898,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/set-value/download/set-value-2.0.1.tgz",
       "integrity": "sha1-oY1AUw5vB95CKMfe/kInr4ytAFs=",
+      "optional": true,
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@@ -4820,6 +4910,7 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/extend-shallow/download/extend-shallow-2.0.1.tgz",
           "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+          "optional": true,
           "requires": {
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@@ -4855,6 +4946,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/snapdragon/download/snapdragon-0.8.2.tgz",
       "integrity": "sha1-ZJIufFZbDhQgS6GqfWlkJ40lGC0=",
+      "optional": true,
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@@ -4870,6 +4962,7 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/define-property/download/define-property-0.2.5.tgz",
           "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+          "optional": true,
           "requires": {
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@@ -4878,6 +4971,7 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/extend-shallow/download/extend-shallow-2.0.1.tgz",
           "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
+          "optional": true,
           "requires": {
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@@ -4942,7 +5036,8 @@
         "kind-of": {
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/kind-of/download/kind-of-6.0.2.tgz",
-          "integrity": "sha1-ARRrNqYhjmTljzqNZt5df8b20FE="
+          "integrity": "sha1-ARRrNqYhjmTljzqNZt5df8b20FE=",
+          "optional": true
         }
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@@ -4972,6 +5067,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/source-map-resolve/download/source-map-resolve-0.5.2.tgz",
       "integrity": "sha1-cuLMNAlVQ+Q7LGKyxMENSpBU8lk=",
+      "optional": true,
       "requires": {
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         "decode-uri-component": "^0.2.0",
@@ -4991,7 +5087,8 @@
     "source-map-url": {
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/source-map-url/download/source-map-url-0.4.0.tgz",
-      "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM="
+      "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=",
+      "optional": true
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     "spdx-correct": {
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@@ -5025,6 +5122,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/split-string/download/split-string-3.1.0.tgz",
       "integrity": "sha1-fLCd2jqGWFcFxks5pkZgOGguj+I=",
+      "optional": true,
       "requires": {
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@@ -5054,6 +5152,7 @@
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       "integrity": "sha1-YICcOcv/VTNyJv1eC1IPNB8ftcY=",
+      "optional": true,
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         "object-copy": "^0.1.0"
@@ -5063,6 +5162,7 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/define-property/download/define-property-0.2.5.tgz",
           "integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
+          "optional": true,
           "requires": {
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@@ -5222,6 +5322,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/to-object-path/download/to-object-path-0.3.0.tgz",
       "integrity": "sha1-KXWIt7Dn4KwI4E5nL4XB9JmeF68=",
+      "optional": true,
       "requires": {
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@@ -5230,6 +5331,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/to-regex/download/to-regex-3.0.2.tgz",
       "integrity": "sha1-E8/dmzNlUvMLUfM6iuG0Knp1mc4=",
+      "optional": true,
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@@ -5332,6 +5434,7 @@
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       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/union-value/download/union-value-1.0.1.tgz",
       "integrity": "sha1-C2/nuDWuzaYcbqTU8CwUIh4QmEc=",
+      "optional": true,
       "requires": {
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@@ -5353,6 +5456,7 @@
       "version": "1.0.0",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/unset-value/download/unset-value-1.0.0.tgz",
       "integrity": "sha1-g3aHP30jNRef+x5vw6jtDfyKtVk=",
+      "optional": true,
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@@ -5362,6 +5466,7 @@
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/has-value/download/has-value-0.3.1.tgz",
           "integrity": "sha1-ex9YutpiyoJ+wKIHgCVlSEWZXh8=",
+          "optional": true,
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@@ -5372,6 +5477,7 @@
               "version": "2.1.0",
               "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/isobject/download/isobject-2.1.0.tgz",
               "integrity": "sha1-8GVWEJaj8dou9GJy+BXIQNh+DIk=",
+              "optional": true,
               "requires": {
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@@ -5381,12 +5487,14 @@
         "has-values": {
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/has-values/download/has-values-0.1.4.tgz",
-          "integrity": "sha1-bWHeldkd/Km5oCCJrThL/49it3E="
+          "integrity": "sha1-bWHeldkd/Km5oCCJrThL/49it3E=",
+          "optional": true
         },
         "isobject": {
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           "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/isobject/download/isobject-3.0.1.tgz",
-          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8="
+          "integrity": "sha1-TkMekrEalzFjaqH5yNHMvP2reN8=",
+          "optional": true
         }
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@@ -5408,12 +5516,14 @@
     "urix": {
       "version": "0.1.0",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/urix/download/urix-0.1.0.tgz",
-      "integrity": "sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI="
+      "integrity": "sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=",
+      "optional": true
     },
     "use": {
       "version": "3.1.1",
       "resolved": "https://repo.corp.qunar.com/artifactory/api/npm/npm-qunar/use/download/use-3.1.1.tgz",
-      "integrity": "sha1-1QyMrHmhn7wg8pEfVuuXP04QBw8="
+      "integrity": "sha1-1QyMrHmhn7wg8pEfVuuXP04QBw8=",
+      "optional": true
     },
     "user-home": {
       "version": "1.1.1",
diff --git a/yarn.lock b/yarn.lock
index 5f6b537..81e6d47 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1776,8 +1776,8 @@ home-or-tmp@^2.0.0:
     os-tmpdir "^1.0.1"
 
 hosted-git-info@^2.1.4:
-  version "2.4.2"
-  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.4.2.tgz#0076b9f46a270506ddbaaea56496897460612a67"
+  version "2.8.9"
+  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.9.tgz#dffc0bf9a21c02209090f2aa69429e1414daf3f9"
 
 http-browserify@0.1.x:
   version "0.1.14"