ADD::wait Room master
Merge branch 'wangyujue/LeapBand' of github.com:hukewei/leapband into wangyujue/LeapBand

Conflicts:
	src/fr/utc/leapband/sma/UserContainer.java
Merge pull request #49 from hukewei/zhangyixuan/leapband

Zhangyixuan/leapband
FIX::room host bug & sound agent name
Merge pull request #47 from hukewei/wangyujue/LeapBand

Wangyujue/leap band
FIX::guitar velocity exception & volume change improve
ADD::piano
FIX