Add Forum from content management is incomplete.

The og_forum module does a great job of managing forums for groups but you must manage it from the group management menu. If you attempt to add a new forum to a container using the admin | content management page (admin/content/forum), then the forum topic will not be added to the og_term table. This results in the forum missing from the manage group forum list.

The attached patch adds an og_forum_taxonomy hook that will solve this problem. In addition, the 'inserts' for the term nodes have been removed from the appropriate sections to defer to the hook. The result is that forum nodes can be added either from the group management page or from the content management.

In addition, deleting a forum from the content management will also work correctly and be removed from the og_term table.

I've also modified a couple of the menu items to use upper case where appropriate.