[root] FlashFire

Sep 13, 2017

v0.72:
- OTA: Fix new style OTA-download-complete marker detection
- A/B OTA: Add suppport for 'streaming' style OTAs
- A/B OTA: Enable pre-mount by default (required for incremental A/B OTAs now)
- Wipe: Fix dalvik-cache wipe greedily removing some files it shouldn't

Release notes: https://plus.google.com/+Chainfire/posts/RhmSN82gTz4