Look into using zuul to drive sauce labs
Write up tests to Sauce Labs.

Finish Zuul configuration. Switch make and NPM to use new testing method.

Address issue where we load the web worker too often, causing the tunnel
between the build machine and Sauce Labs.
Revert to Karma for browser testing.
Only run the sauce labs test
Use correct url for karma-sacue library
Use the correct branch
Remove Zuul config file
Fix makefile
Configure sauce labs to run on the ci environment only
Update build
Merge pull request #77 from tangrams/iwillig/webgl-sauce-labs

Iwillig/webgl sauce labs
Merge branch 'master' into icons