Merge pull request #59 from DIdiHL/chenxi

Implemented accelerometer in mockapp using library
Merge pull request #60 from DIdiHL/chenxi

Implemented the communication part in heart-rate-monitor using library
add record uncompressed audio activity
Merge pull request #61 from DIdiHL/mia

add record uncompressed audio activity
deleted redundant codes in camera activity
Merge pull request #62 from DIdiHL/mia

deleted redundant codes in camera activity
set up ShakingPatternRecorder project