Sample renamed to CameraControl;
Picture taking added to show camera preview restart.

All samples use application style in android manifest instead of system calls in onCreate event now.

Face detection package name replaced on org.opencv.facedetect for consistency with Google Play package.

(cherry picked from commit bd12f636)
Signed-off-by: Andrey Kamaev <andrey.kamaev@itseez.com>

(cherry picked from commit 47b96407)
Signed-off-by: Andrey Kamaev <andrey.kamaev@itseez.com>

Android samples fixed - line endings are converted to unix style; autogenerated folders are added to ignore list