Various controller fixes
Reverse axis event mapping in G_RemapGamepadEvent (fixes #937 (closed))
Was erroneously mapping events inside the deadzone as key down and vice versa.
Always swallow pad axis events when menu is active (fixes #936 (closed))
This prevents axis events from trickling out of the menu and taking effect in G_Responder when they aren't hitting the digital deadzone needed to be mapped into internal menu key events.