Unit tests added. I did uncover a bug in my original PR that I fixed. Thanks for the quick response prompting me to do that. I tried to run the tests before submitting the PR, but I ran into a few early issues that I neglected to muscle through.

I think the issue there was bower looking for js-data 3. I fixed it by pinning the js-data and js-data-http versions to ^2.0.0 in bower.json. I've included that in this PR as well.

All of the tests pass now. I also confirmed that my newly added tests fail in 2.10.0 vanilla.