prep for 2.2.2

git-svn-id: https://plugins.svn.wordpress.org/option-tree/trunk@846058 b8457f37-d9ea-0310-8a92-e5e31aec5664
update pot file

git-svn-id: https://plugins.svn.wordpress.org/option-tree/trunk@846059 b8457f37-d9ea-0310-8a92-e5e31aec5664