Merge commit '20b213c7dd9d18d092a60ea176dd83cc29d6be80' * commit '20b213c7dd9d18d092a60ea176dd83cc29d6be80': Document that stopPreview is not needed before takePicture.
Merge commit '20b213c7dd9d18d092a60ea176dd83cc29d6be80' * commit '20b213c7dd9d18d092a60ea176dd83cc29d6be80': Document that stopPreview is not needed before takePicture.