Merge branch 'master' of https://github.com/Green-Snake-Platinum-Kangaroo/Green-Snake-Platinum-Kangaroo
merge upstream
Merge branch 'master' of https://github.com/Green-Snake-Platinum-Kangaroo/Green-Snake-Platinum-Kangaroo

Conflicts:
	public/js/visualizer.js
Merge branch 'master' of https://github.com/Green-Snake-Platinum-Kangaroo/Green-Snake-Platinum-Kangaroo
add karma test
add mocha test
Merge pull request #50 from victorleungtw/master

Add mocha and karma