fixes "Exit app by pressing the home screen back button" bag
fixes "visible search by closed inAppBrowser" bug
fixes "In case of signout from onedrive the token on googleDrive and vice versa is dropped." bug
fixes "signout for gugle"  bug
adds isShow property and callbacks for wp8 in progressIndicator plugin
Fixes "Lock buttons back at the emergence of when visibility progress bar" bug
hide download for googleDrive files
hide number of files for folder in googleDrive.