Remove use of _make_cat_compat 

git-svn-id: https://plugins.svn.wordpress.org/am-events/trunk@913250 b8457f37-d9ea-0310-8a92-e5e31aec5664
Add test for am_get_the_venue()

git-svn-id: https://plugins.svn.wordpress.org/am-events/trunk@913251 b8457f37-d9ea-0310-8a92-e5e31aec5664