state-machines/state_machines-mongoid

# ActiveModel integrations
appraise 'active_model_4.1' do
    gem 'activemodel', github: 'rails/rails', branch: '4-1-stable'
end

appraise 'active_model_4.2' do
    gem 'activemodel', github: 'rails/rails', branch: '4-2-stable'
end