dev 2.7.5 bug fix

git-svn-id: https://plugins.svn.wordpress.org/wp-to-twitter/trunk@778974 b8457f37-d9ea-0310-8a92-e5e31aec5664
new .pot

git-svn-id: https://plugins.svn.wordpress.org/wp-to-twitter/trunk@778975 b8457f37-d9ea-0310-8a92-e5e31aec5664