chore(package): update @angular/compiler-cli to version 5.1.2

Closes #15

Author: greenkeeper[bot]

package.json

@@ -36,7 +36,7 @@
   },
   "devDependencies": {
     "@angular/cli": "1.2.4",
-    "@angular/compiler-cli": "^4.0.0",
+    "@angular/compiler-cli": "^5.1.2",
     "@angular/language-service": "^4.0.0",
     "@types/jasmine": "2.5.53",
     "@types/node": "~8.0.13",