Karma cleanup, spec reporter
Add karma.conf.js to jshint
Use jshint ignores option instead
update jshint
Fix tavis yaml, manually merge #486
Merge branch 'master' into dev
Merge branch 'karma-fix' of github.com:drkibitz/pixi.js into drkibitz-karma-fix
Merge branch 'drkibitz-karma-fix' into dev
Added instrumentation and coverage
minor Gruntfile cleanup