auto version bump: minor

Author: zakius

src/manifest.json

@@ -6,7 +6,7 @@
   },
   "description": "RSS Reader",
   "manifest_version": 2,
-  "version": "2.17.0",
+  "version": "2.18.0",
   "background": {
     "page": "index.html"
   },
@@ -72,4 +72,4 @@
       "id": "smart-rss@mozilla.firefox"
     }
   }
-}
+}