Update compass bounds to fix TRSminimap.getAngleRadians

decreased image size by 3 pizels (w and h).
bounds used grab this: http://i.imgur.com/bGRJbj0.png (zoomed of course)
and now it grabs this: http://i.imgur.com/Itq8A14.png
Merge pull request #119 from turpinator/patch-4

Update compass bounds to fix TRSminimap.getAngleRadians