added headtracking support (via webcam) for Parallax.js (using headtrackr.js library - see README.md)
added headtracking debug view on the video
Added headtrackr-script-location (for lazy load of headtrackr.js script depending on feature detection)
added getUserMedia feature detection

if no getUserMedia is found, won't even download headtrackr.js and will
fallback to normal beahviour (mouse) - so no change (not intrusive) at
all ...
changed default fallback message / fixed camera / debugView overrides displayVideo / added headtrackrScalar as API
better README.md comming
updated readme
added headtrackrPreferDeviceMotion to force on DeviceMotion or Headtracking if both features are available (like on a tablet with an acceleromer that also supports getUserMedia) to get the best user experience of any device.
API specs for this features comming next
added headtrackrPreferDeviceMotion to the README
change Gruntfile to allow release launch
:gb: Created index.html for project homepage.
:gb: Updated index styles.
:gb: Added fading layer styles and thumbnail image for sharing.
:gb: Removed overflow hidden from scene.
:gb: Added Twitter share button and Google Analytics tracking script.
:gb: Removed old thumbnail.
:gb: Updated project homepage styles.
:gb: Updated project homepage styles.
:gb: Switched homepage to use new parallax.js, removing jQuery dependencies.
:gb: Updated image path.
:gb: Ladies and gentlemen, I give you the new parallax.js homepage. Enjoy.