Grunt test command

[cmbirk]

Create grunt test command to run the test suite

[cmbirk]

I'm going to roll the start of the travis config into this issue branch as well.

[cmbirk]

This is done in 5a1094d with travis integration.

[krusynth]

This is awesome @cmbirk and I'm super-glad to have this in place!

[krusynth]

It'd be nice to add coverage to this, I'll have a look once I figure out more of istanbul's weirdness.