Updated version to 2.0.1 to work around rpm and deb versioning scheme does not…

Updated version to 2.0.1 to work around rpm and deb versioning scheme does not support regular semver prerelease naming standard, it seems like 2.0.0-beta3 is newer than 2.0.0 for rpm and deb packages.

package.json

@@ -4,7 +4,7 @@
     "company": "Coding Instinct AB"
   },
   "name": "grafana",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "repository": {
     "type": "git",
     "url": "http://github.com/torkelo/grafana.git"