change stats default mode
Merge branch 'master' of https://github.com/Green-Snake-Platinum-Kangaroo/Green-Snake-Platinum-Kangaroo
Merge branch 'master' of https://github.com/Green-Snake-Platinum-Kangaroo/Green-Snake-Platinum-Kangaroo
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
resolve conflict
Merge branch 'master' of https://github.com/Green-Snake-Platinum-Kangaroo/Green-Snake-Platinum-Kangaroo
add karma config file
Merge pull request #69 from victorleungtw/master

add karma config file