Fix for version number on about page

git-svn-id: https://plugins.svn.wordpress.org/icegram/trunk@940790 b8457f37-d9ea-0310-8a92-e5e31aec5664
Removing upgrader global

git-svn-id: https://plugins.svn.wordpress.org/icegram/trunk@940791 b8457f37-d9ea-0310-8a92-e5e31aec5664