Add a CSRF exception for twilio#receive
Remove call to center_for_zip_code in message processing
Replace hard-coded 3 with listItem.length
Put conditional centering back in; listItem.length loop
Adjust number of responses to prevent crash if list has less than 3 venues
Upgrade to Rails 4
Update Gemfile.lock
Move in some Rails 4 defaults
Configure environments for Rails 4
Update Gemfile for uglifier