Updated version to 1.9.0

CHANGELOG.md

-# 1.9.0 (unreleased)
+# 1.9.0 (2014-12-02)
 
 **Enhancements**
 - [Issue #1130](https://github.com/grafana/grafana/issues/1130). SinglestatPanel: Added null point handling, and value to text mapping

package.json

@@ -4,7 +4,7 @@
     "company": "Coding Instinct AB"
   },
   "name": "grafana",
-  "version": "1.9.0-rc1",
+  "version": "1.9.0",
   "repository": {
     "type": "git",
     "url": "http://github.com/torkelo/grafana.git"