VR Theater for Cardboard

Invalid date

In this version:

- fixed a small bug affecting a limited number of users (check here: https://goo.gl/FUxvM2 for details).

Kudos to Michael for the bug report!

New in the previous version:

- a lot of refactoring. You will not notice anything until you hit a bug, which is why I\'m writing it here
- new settings for screen contrast and brightness in the options panel (thanks to Bernard Cozier and others for the suggestion)