Merge branch 'master' of gitlab.c3sl.ufpr.br:portalmec/portalmec

app/models/collection.rb

 class Collection
   include ActiveModel::Model
+  include RepositoriesProxy
   attr_accessor :id, :created_at, :last_modified, :name, :description, :privacy,
                 :owner, :learning_objects
   validates_presence_of :name, :created_at, :owner, :learning_objects