Updating file type restrictions.

git-svn-id: https://plugins.svn.wordpress.org/event-o-matic/trunk@904475 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updating file type restrictions.

git-svn-id: https://plugins.svn.wordpress.org/event-o-matic/trunk@904476 b8457f37-d9ea-0310-8a92-e5e31aec5664