i9100g: liblights: generic button backlight implementation

Change-Id: Ia3c4be6f2fb8a71a575e449ba7e8893d6bdd0e94
i9100g: recovery.rc cleanup, fstab cleanup

Change-Id: I47057d9111bba6709eb399d648be92706a620182
Merge "i9100g: liblights: generic button backlight implementation" into cm-10.2
Merge pull request #7 from CyanogenMod/cm-10.2

CM10.2