Fixes + Menus for Xbox 360 Controller

-Remove xbox_pitch_invert, use sign of m_look instead.
-Fix issue with unclamped angles.
-Make run default movement speed
-Remove message for unbound xbox buttons
-Change order of joystick/xbox for in_controller
-Removed stupid view/move stick stuff in favor of left/right stick
-Right stick now navigates menus
-Trigger threshold is now clamped
-Removed cruft from control menus + add Xbox 360 configuration there