Code optimization and copypasta removal:
the teleport wand now uses do_teleport
the polymorph wand now uses wabbajack in both instances

You can now click on yourself while holding a wand to cast it on yourself in addition to clicking on the wand itself.

Changed how guns/magic are given out slightly. Previously no antag could get a gun/magic thing (including survivors made by the spell in the case of multicasting) but now antags who aren't the wizard or an apprentice of the wizard also get one.

Fixed a few bugs on accidentally burning charges by click in places tht wouldn't actually fire the wand/staff