Update release version and add release notes for 1.2.10.patch

Author: sfederwisch

CHANGELOG

@@ -3,6 +3,15 @@ This file contains a summary of changes to the Oppia code base. For a full chang
     https://code.google.com/p/oppia/source/list
 
 
+v1.2.10.patch (10 Oct 2014)
+--------------------
+Editor improvements:
+* In noneditable mode, hide the widget selector in the state editor.
+* Fix a bug relating to the graph visualization height in Firefox.
+
+Infrastructure:
+* Allow exploration statistics datastore models to be migrated.
+
 v1.2.10 (7 Oct 2014)
 --------------------
 General editor improvements:

app.yaml

@@ -1,13 +1,13 @@
 application: oppiaserver
-version: 1-2-10
+version: 1-2-10-patch
 runtime: python27
 api_version: 1
 threadsafe: false
 
 env_variables:
   DJANGO_SETTINGS_MODULE: 'oppiaserver.settings'
   # Modify the 'version' field above to match this.
-  OPPIA_VERSION: '1.2.10'
+  OPPIA_VERSION: '1.2.10.patch'
 
 builtins:
 - appstats: on