[root] FlashFire

Sep 12, 2017

v0.71:
- A/B OTA: Fix update_engine_flashfire crash in logs
- A/B OTA: Always make update_engine_sideload available
- A/B OTA: Fix fstab availability for new style OTAs
- A/B OTA: Don't automatically delete OTAs after successful install if located on internal storage or sdcard
- A/B OTA: Detect target slot rather than blindly switching to the other one
- FlashUI: More Android Oreo compatibility fixes

v0.70:
- FlashUI: Android Oreo compatibility