Small tweak: Allow DPI for UI to go up 144, exactly double size of 72.
That makes all default icons draw in full unfiltered 32x32 pixel glory!



git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@54100 954f8c5b-7b00-dc11-b283-0030488c597c