SELinux: don't suppress the "no file_contexts" message on the UI

Change-Id: I1456e7e2d2a1f3e143c084e1410dd31c505793ad
add --headless mode

Change-Id: I6338ed1d093a8db20250bd060cf97896db268976
Merge "add --headless mode" into cm-10.1
Recovery: Add support for automatically checking and making loki images
for locked bootloader bypass on loki supported devices. Loki support is
enabled with ENABLE_LOKI_RECOVERY.

Change-Id: I81fe267d58f0dda18a790e25df223f011dca3e37