initial commit of 2015 stuff

Essentially, the final 2014 site with the following changes:

- s/2014/2015/g
- s/Chicago/Dallas/
- add rudimentary hotel info; will add more when we find it
- got rid of the @&*)$% EOL whitespace
- left out payment processing and sponsor logos

This shouldn't be deployed to the production site yet;  let's check it out on test first.  Thanks!