NotificationLight: Fix forced close on non voice capable devices

Change-Id: Ib2c1e7d22414cff3ce06936a75d9de342b32320f
Fix button brightness preview.

Change-Id: I2b0933062d443855114088e1bb4c09c68a83a0e5
Merge "NotificationLight: Fix forced close on non voice capable devices" into cm-10.2
fix removal of homebutton category again

Change-Id: Ic471adab88b5b08342fcbdcc4a741150065ef455
add back missing power menu to button settings

Change-Id: I114a9843a5a00e00775734e5a930ad54c5565d23
removed obsolte color options

Change-Id: Icb6e5131c21c4f2f4a781dc9afa718e306416883
fix onPreferenceTreeClick, to make power button menu  working

Change-Id: Iccd64e266a9d084580bc187ba1bf61a2b2c3d553
Merge branch 'cm-10.2' of github.com:CyanogenMod/android_packages_apps_Settings into cm-10.2
option to change number of quicksettings columns 2/2

Change-Id: I044ded7197d0304843b8d08b339ef50669ae2611
Merge branch 'Upstream/cm-10.2'

Conflicts:
	res/values/cm_strings.xml