Enhanced output. Fixes #87 and fixes #104.

Modified the grunt logging so that the output is similar (or competitive) to similar unit test runners.

The new output looks like:

```
Running "jasmine:pivotal" (jasmine) task
Testing jasmine specs via phantom

  Player
    ✓ should be able to play a Song
    when song has been paused
      ✓ should indicate that the song is currently paused
      ✓ should be possible to resume
    ✓ tells the current song if the user has made it a favorite
    #resume
      ✓ should throw an exception if song is already playing

5 specs in 0.021s.
>> 0 failures
```