Merge pull request #38 from DIdiHL/chenxi

add test content provider in MockSana
Change event unit test data size.
Merge branch 'development' of https://github.com/DIdiHL/plugin_android_library into hanlin
Added switchToBluetooth to library
Merge pull request #39 from DIdiHL/zhaoyue

Added switchToBluetooth to library
Added checkingBluetoothConnectivity to FeatureChecker
Merge pull request #40 from DIdiHL/zhaoyue

Added checkingBluetoothConnectivity to FeatureChecker
Merge pull request #41 from DIdiHL/hanlin

Hanlin Change event listener test data size
audio record for mock app
Merge pull request #42 from DIdiHL/mia

audio record for mock app
new camera activity first version
Merge pull request #43 from DIdiHL/mia

new camera activity first version
fix error
Merge pull request #44 from DIdiHL/mia

fix error
fixed camera layout bug
Merge pull request #45 from DIdiHL/mia

fixed camera layout bug
fixed a bug
Merge pull request #46 from DIdiHL/mia

fixed a bug
Added tests for bluetooth Device
Merge pull request #47 from DIdiHL/zhaoyue

Added tests for bluetooth Device