Made navigation responsive, moved game UI out of nav bar.
Extended gamestate to allow access to player/playerbehaviour (for future movement controls)
Added touch controls (which also respond to mouse input, since Firefox pretends to be touch-enabled).
Adjusted initial display port zoom so that screen and controls work on mobile landscape/portrait and tablet landscape/portrait.
Tested on Nexus 4 & Nexus 7 in Chrome
Merge pull request #79 from kris-sum/gh-pages

Made navigation responsive, moved game UI out of nav bar, added touch controls