match 'api/0.6/relation/:id/:version' => 'old_relation#version', :via => :get, :id => /\d+/, :version => /\d+/
match 'api/0.6/relation/:id' => 'relation#read', :via => :get, :id => /\d+/
match 'api/0.6/relation/:id' => 'relation#update', :via => :put, :id => /\d+/
match 'api/0.6/relation/:id/:version' => 'old_relation#version', :via => :get, :id => /\d+/, :version => /\d+/
match 'api/0.6/relation/:id' => 'relation#read', :via => :get, :id => /\d+/
match 'api/0.6/relation/:id' => 'relation#update', :via => :put, :id => /\d+/