version 1.1.2

Merge pull request #3 from Jake-Y/master

Achieve a stable flight after the first time you unlock, no matter how

version 1.1

1. shorten osd data back to app
2. add the function to check the volt of battery
3. add fast trim functions
4. add flight state to osd
5. disable magnetometer

version 1.0.3

refined failsafe mode

version 1.0.1

Fixed the bug:
Motors start beeping and some (maybe all) motors start slowly spinning after connecting the battery.