Fix tests

[marshallswain]

This gets the tests to pass in Travis. Based on the suggestions in karma-runner/karma-phantomjs-launcher#120

Hopefully this will lighten the workload a bit and make it easier to merge all of the other PRs after they are brought up to date with these changes.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@39fea55). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #92   +/-   ##
=========================================
  Coverage          ?   24.75%           
=========================================
  Files             ?       18           
  Lines             ?      202           
  Branches          ?        0           
=========================================
  Hits              ?       50           
  Misses            ?      152           
  Partials          ?        0

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[marshallswain]

@declandewet I'm not sure why the codecov/project CI is failing. Maybe the previous merge didn't successfully pass tests?

[marshallswain]

Hopefully this will allow us to merge #84