Update changelog and contributors list

same as http://review.cyanogenmod.org/#/c/55124/

Change-Id: Ibb46d44f63752b1f18dd6ca1fceaf6df61b8aa3a
reordered far east APN

Swapped order of Fetnet01 to FarEasTone

Change-Id: I7134a262a7d9f7e1499969d69f759b934e5e642a
Add CM Legal (1 of 2)

Allow defining a ro.cmlegal.url to for T&C and Privacy Policy

Change-Id: I45ffbdd9e472e258ed8c5a63dff0f3b9c7bc04e2
(cherry picked from commit 381a305718e1a34b1ef447faadef6ad6bd77736a)
Add APN settings for Safaricom and Airtel (Kenya).

Change-Id: Iab1abacf50ce32406dc5a545b078576ad1572235
Merge remote-tracking branch 'cyanogen/cm-10.2' into cm-10.2