disable debugging; minor bug fix

git-svn-id: https://plugins.svn.wordpress.org/wp-to-twitter/trunk@855945 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update stable tag

git-svn-id: https://plugins.svn.wordpress.org/wp-to-twitter/trunk@855949 b8457f37-d9ea-0310-8a92-e5e31aec5664