Merge pull request #3 from thinkallabout/unstable

Merge Unstable into Master
Merge pull request #9 from thinkallabout/testing

Testing into Master
Update README.md
Added "engine" to the README.md title
Merge branch 'unstable' of https://www.github.com/thinkallabout/argon into unstable
Removed GOAL.js
Moved maths to mathlib & created platform folder
Moved input files to own folder
Moved entity & sprite to entity folder
Moved src files up to root
Moved various files for better structure
Merge pull request #20 from thinkallabout/unstable

Unstable into Testing