logback-android-*:1.1.1-5 is gone from jcenter, so we downgrade to 1.1.1-4 so far

refine the notice for App ID

Android: add onAudioRouteChanged callback

Android: enable UI tests

Android: use setLogFile instead of setParameters

fix some minor issue

README enhancement

don't enable changing view when less than two users

update build configs for project

support for JELLY_BEAN

Android: refact hierarchy for videoprp

Android: adopt latest 1.7.0 SDK

Android: enable dual stream mode when sdk initialized

Android: use large memory for JACK&JILL

Android: adopt SDK 1.7.0