added devise gem and performed initial setup
generated devise on person model
generated views with devise for user registration
changed bugsnag environmen to production-only
fixed model validation
fixed flash message to only show when it exists
added devise test helpers
added user login spec and helper method for signing in
Merge in master styles.
added devise gem and performed initial setup
generated devise on person model
generated views with devise for user registration
fixed model validation
fixed flash message to only show when it exists
added devise test helpers
added user login spec and helper method for signing in
removed duplicated validation — now handled with devise
fixed bad merge for application layout
Update Person pages to only output public-appropriate data
Merge branch 'master' of github.com:fullstacktalks/website into tm/user_auth