CarbonAbout: Cleanup

* List in alphabetically order
* Remove unnecessary headers
* code cleanup

PS2: Device Maintainer string
PS3: Unified back button instead of linking all the way back cfibers

Preview (how does it looks like?) - http://www.youtube.com/watch?v=cvIA1M64eng

Change-Id: If371bef3c0acbb96d1af48cd50540885004cba62