Incorporate TARGET_VENDOR_RELEASE_BUILD_ID into the build identifier if it exists

Change-Id: I24d422abd3817c55cffe17166fb30d7efe48e0a0
cm: Actually add the custom clientidbase

Change-Id: I8105f2cd13c26777f59f1926f378f52c1152cd0d
Merge remote-tracking branch 'CyanogenMod/cm-10.2' into cm-10.2