Bugfix: multiple categories in widgets wasn't working

git-svn-id: https://plugins.svn.wordpress.org/events-made-easy/trunk@969893 b8457f37-d9ea-0310-8a92-e5e31aec5664
remove a location wasn't working

git-svn-id: https://plugins.svn.wordpress.org/events-made-easy/trunk@969896 b8457f37-d9ea-0310-8a92-e5e31aec5664