WARNING: This Safestrap-version is only tested on maserati and
may lead to boot-failures on other devices! If you can no longer
boot, you have to flash your system-partition back to stock
using motorola-fastboot or RSDlite. No need to touch the
other partitions (if your stock-slot was still on Motorola stock).

These are test-builds of Safestrap now fully supporting SELinux.
They are signed with a different key than the one from Hashcode,
so to install them you need to do the following:

 * Boot to stock
 * Start the old Safestrap-version
 * Uninstall Recovery
 * Uninstall the Safestrap APP (due to the different key)
 * Install the "debug" Safestrap-version (signed with standard test-key)
 * Install recovery again

If you enter recovery, the device will now also execute a new
kernel, so you will get the kexec-vibrate at this point, too.

This new Safestrap is fully compatible with old ROMs, you don't need
to downgrade if you want to install any old ROM.

Source:
https://github.com/stargo/android_bootable_recovery
https://github.com/stargo/android_packages_apps_Safestrap