update demo to Android SDK v4.14-trial1

update demo to Android SDK v4.13.1

update to adapt SDK4.13

Update sample to Android SDK 4.12.

update FPVDemo to Android SDK 4.11.

update FPVDemo to Android SDK 4.10.

update sample to Android SDK 4.9.

update demo to Android SDK 4.8.1.

update sample to Android SDK 4.8.

update sample to Android SDK 4.7.1.