Added rails_12factor.
removed turbolinks from gemfile.
Removed jquery-rails from gemfile.
Removed coffee-rails from gemfile.
Added countries gem.
Added country flag icons.
Updated Gemfile.lock.
Added country_code to golfer.
Removed countries gem.
Added Country model.
Replaced golfers#country_code with golfers#country_id.
Added Golfer/Country relation.
Updated seeds.rb with country assignment.
Updated schema.rb.
Added placeholder flags to bracket/show view.