New subforum not displayed under its parent

[riddle]

When creating a new forum, declaring an existing forum to be its parent does not automatically display it in its proper position in the hierarchy.

I'm told that a page reload fixes this although I haven't confirmed it. (My own workaround was to go through the "Edit Forum Order" process and explicitly drag it into place.)

See also: http://bbpress.org/forums/topic/hierachical-forums-do-not-seem-to-work

(In [878]) use forums loop for admin display. If JS, remove parent and position fields from add forum forum since listman can't do hierarchy or position. cut_branch arg in get_forums(). Fixes #672 73