Now can send to sana
Merge branch 'development' of https://github.com/DIdiHL/plugin_android_library into zhaoyue

Merge
Merge branch 'development' of https://github.com/DIdiHL/plugin_android_library into zhaoyue

Merge
Merge branch 'development' of https://github.com/DIdiHL/plugin_android_library into zhaoyue

Merge
Fixed a UI bug
Merge branch 'development' of https://github.com/DIdiHL/plugin_android_library into zhaoyue

Merge
Merge branch 'development' of https://github.com/DIdiHL/plugin_android_library into zhaoyue

Merge
Merge
Merge branch 'development' of https://github.com/DIdiHL/plugin_android_library into zhaoyue

Merge
Modified to be a bluetooth heartbeat recorder
Merge pull request #97 from DIdiHL/zhaoyue

Zhaoyue