Enable poll panel for pollgui branch
Moved poll panel code to admin_poll.dm.  Added additional panel to
allow for viewing most options of polls, and ability to remove
polls
Added poll results in the Manage Polls panel.  Also moved most
code over to admin_poll.dm, with only href related stuff
getting processed in topic.dm
Merge branch 'pollgui'

Conflicts:
	code/modules/admin/admin_verbs.dm