Be more Railsy and use blank rather than size
Closes #151 - Events now expire from the list after the ends_at time has passed.
Merge pull request #172 from jdg/master

Only show current and future Events
Fix topic and registration links in header
Style registration / signin pages
Feature parity for user registration

+ Add bio, tagline and name to user model
+ Update list of people and provide a show person page
+ Remove some dangling angular templating on topics
Topic resources require authentication
Merge pull request #173 from keelerm84/feature/rails-mean-parity

Continued Work Towards Rails Migration