Clean startup

[deobald]

1. Fixed bug: install a new jukebox2, start it up. Everything's cool. Now create a new user. Restart the server. It goes into infinite loop, looking for the new user's music. We fixed the infinite loop.

2. We also create an empty dir for new users on signup now.

[dan-manges]

I just merged this into thehammer/jukebox2/master and I'm getting this spec failure:

Failures:

  1) library random-song returns the default song if no user songs exist
     Expected truthy but was: <false>
     jukebox2/spec/jukebox_web/models/library_spec.clj:61

Does lein spec pass for you if merging this branch into thehammer/master?

[deobald]

Hey Dan, this failure is similar to the previous one on the bulk_queue branch. Rather than repeat the fix in this branch and potentially cause conflicts for you, I'll just hold off until bulk_queue is merged.

Sorry about the breaks! Sloppy Saturday coding.