New features

- Added volume adjustment slider
- Added option to disable hardware volume buttons (some phones have
issues with volume button pressing while in Cardboard
- Added a way to reset the view. This is done by pulling the magnetic
ring when nothing is selected
- Added blacklist to keep apps from showing up that you don't want

These suggestions are all thanks to the people over at Reddit
http://www.reddit.com/r/GoogleCardboard/comments/2fx40a/a_few_days_ago_i
_released_my_new_app_cardboard/