Update version, add tags/20141222.1

git-svn-id: https://plugins.svn.wordpress.org/theme-check/trunk@1051760 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update version in main PHP file

git-svn-id: https://plugins.svn.wordpress.org/theme-check/trunk@1051765 b8457f37-d9ea-0310-8a92-e5e31aec5664