adding complaint integratio with orientDB

app/assets/javascripts/application/collections.coffee

app/assets/stylesheets/application.scss

app/controllers/complaints_controller.rb

app/models/complaint.rb

app/repositories/orient_db/base.rb

app/repositories/orient_db/complaint_repository.rb

app/repositories/orient_db/learning_object_repository.rb

app/repositories/repositories_proxy.rb

app/views/complaints/_add_to_complaint_btn.html.erb

app/views/complaints/_complaints_button.html.erb

app/views/complaints/_form.html.erb

config/routes.rb