Adding polling for devices that don't correctly trigger the readystatechange event
add 10% of time since last-modified heuristic to jazzcat in mobifyjs 2.0
Merge pull request #212 from mobify/v2.0-polling-backup

Adding polling for devices that don't correctly trigger the readystatechange event
Merge pull request #214 from mobify/v2.0-jazzcat-10-percent-heuristic

add 10% of time since last-modified heuristic to jazzcat in mobifyjs 2.0
Merge remote-tracking branch 'origin/v2.0' into v2.0-image-binning

Conflicts:
	build/mobify.min.js

Also brought back some tests in the Gruntfile