2.9.6; bug fix to Tweet expiration function.

git-svn-id: https://plugins.svn.wordpress.org/wp-to-twitter/trunk@996425 b8457f37-d9ea-0310-8a92-e5e31aec5664
Switch to 2.9.6; bug fix.

git-svn-id: https://plugins.svn.wordpress.org/wp-to-twitter/trunk@996428 b8457f37-d9ea-0310-8a92-e5e31aec5664