Changed testing skills back to what they were plus minor formatting.
Minor code formatting.
Moved GameLoop.window to GL.WINDOW plus more preparation for pause menu implementation.
Input object no longer passed to Player during creation, GameLoop's accesses Input objects via GL.INPUT1 or GL.INPUT2, Player objects self.input now points to the appropriate GL.INPUT, Monster class self.input points to an internal self.ai_input.
More progress toward pause menu - properly calls pause menu and returns from it.
Reorganization of GameLoop.__init__.
Slight simplification of Player instantiation.
Pause menu now working with keyboard or gamepad controls, now has continue and quit buttons.  Significant changes (simplification) to Input class to make this work properly.
Fixed merge conflicts.
Merge branch 'mk13-master'
Reynsc