Updated gemfile & gemfile.lock. Heroku is complaining
Changed the method assets are included in application template
Added gem 'rails_12factor' to production
Avatar can not be a required field
config/production.rb: config.assets.initialize_on_precompile = false
Added method in application controller to display first & last name of user in navbar if present, with fallback to current_user.email
Carrierwave-dropbox is working when hardcoded into the lib/carrierwave/storage/dropbox.rb. Still no luck with the initializer