Made animframe_polyfill.js JSHint compliant

Reformatted a bunch to make JSHint happy.
Merge pull request #115 from iirelu/jshint-compliance

Made animframe_polyfill.js JSHint compliant
Adds pictures to use in tiles
Updates main.css to use photos as background
Removes value text from tile
Removes CONTRIBUTING file
Updates README file
Changes team pictures to use HE:labs logo as the 2048 tile
Updates .gitignore file
Updates index file to it's new context
This is not godamn Python!
Updates README file
Updates page style and add small photos for mobile