CidBean: Display CyanogenMod version

Patch Set 1:    * initial release

Patch Set 2:    * get CM version from build.prop

Patch Set 3:    * code cleanup

Before: http://goo.gl/Jizyh
After:  http://goo.gl/EjtJY

Change-Id: Iadedbd7365498277d8afc51d0fe74b6cd105c448