Update version to 2.1.0

Author: moisseev

manifest.json

@@ -8,7 +8,7 @@
   },
   "name": "Received",
   "description": "Displays the \"Received\" header parsed with a regular expression.",
-  "version": "2.0.1",
+  "version": "2.1.0",
   "author": "Alexander Moisseev (moiseev@mezonplus.ru)",
   "homepage_url": "https://github.com/moisseev/received",
   "icons": {