Ensure buttons don't press twice due to any soft-contact stickiness

[vabrador]

The solution may be to use John's InteractionButton, but that doesn't bode well for the non-IE mode. Ideally spring-style buttons like in IE101 will "just work".

The other solution that should "just work" with soft contact would be to make buttons have much thicker colliders, so movement "away from the button" gets ignored like one would expect.

From this issue in platform:

When attempting to press the button that toggles the interaction engine on and off the hand can get snagged on the button and cause it to trigger twice as you're moving your hand away. It seems that once this occurs it's also possible for the hand to start passing through the button sometimes without triggering it at all.

Video: >https://drive.google.com/a/ocuspec.com/file/d/0B_yvWnO5QAiAS1dXNFEyemRTUTVmdGs0cDBoWnJNTXU1dW80/view?usp=sharing

This has been reported in the IE101.