Set up new structure for WDC14 in new branch
First pass vibration demo in place
First pass of the proximity stuff
added battery api example
Basic demo of light level api
grunt set up and packages updated with dependencies
Fixed grunt issue
udpates and styles for the prox demos
added grunt output directory
Merge branch 'WDC14' of github.com:ajfisher/wdc into WDC14
Styled battery demo in place
updated styles with consistent font
split variable definitions out for reuse
fixed detection code
added contrast demo
added Racing Car demo, now with vibration support
added support notes for Chrome for Android breakage on Vibration API
initial ghosts commit to get positions
refactor of the head tracking, image loading now in place
modded headtracker to support higher res vid stream