Added karma and jasmine, via karma init. Now I have both jasmine and mocha, which is not so great, and my tests aren't really testing anything.
 To run the nascent tests: `karma start karma.conf.js`
Make karma configuration actually work. Added trivial tests for HueService and ColorstopModel.
Delete unused files.
`grunt karma` to run tests in karma.
`grunt test` runs the tests in karma, once.
Add testing instructions to readme.
Switch to using karma for testing, and make the tests actually work in requirejs.