Android specific:
- Temporary screen orientation lock added. Long tap (2.5 seconds) to the
  playground locks screen rotation.
- Toolbar: configuration of displayed toolbar buttons added to options menu.
- Toolbar: dynamic updates on Toolbar and Options settings.
- Toolbar buttons for 'new deal' and 'restart' have now display a
	toast instead of executing immediatley. Tap to the toast accept.
- Implementation of full picture hint for the new puzzle type games.
Main version:
- consult NEWS.asscidoc or html-src/news.html on
  github for more change informations.