manual override button bugfix

ButtonText:
-deprecated isMouseOver() function with no parameters
-deprecated version of draw() with no parameters
-added draw() taking mouse position as parameters
+allows corrections to be given if button is drawn offset
!Title screen etc. still use (and work with) deprecated version

GameWindow:
-modified draw() to use parameterised ButtonText.draw()
-modified setAreas() to reduce width, height of manualOverrideButton