Users can join events and it's AWESOME
Made that jquery time-dropdown thing work again
RSVP validations! And users can't go around rsvp-ing a million times
Fixed RSVP validation and refactored current event stuff
User can see a list of their upcoming events on their profile

* Now with more partials!
Formatted times and added upcoming hangs to the user's profile
Users can cancel RSVPs.

* Also I messed with a bunch of my specs because they stopped working / being relevant
Twilio texts the user upon RSVP cancellation!
Refactoring and commenting the models. Host now gets a text when someone joins their hang
Users get an SMS on registration. Cool!
Refactored a couple things, and added my fake-phone-number to the factories

* Also, texts send with the user's first name right now, for development
* So I can tell who the text was originally for
* I'm using http://www.pinger.com/tfw/ for fake-texting and it's AWESOME