Taking advantage of GitHub's rendering of .geojson
Merge pull request #796 from tschaub/geojson-rename

Use .geojson extension for GeoJSON
Using testacular
Watch test and source files

Testacular 0.5.2 provides the ability to watch files without serving.  This is required because we are using Plovr to serve and Testacular wouldn't otherwise know to watch.
Script to start plovr and run tests
Use Mocha adapter

Additional work needed to get tests passing (proxy data for tests that use xhr and get rid of markup dependency in ol.html).
Karma instead of Testacular
Serve kml and geojson, set urlRoot