Added relationships to ember models
Changed compilation api controller to get link_ids
Added createCompilationWithSelection to links controller. This action is called from the selection panel
Added a comment
Fixed compilation route
Changed API serializers to serialize associations as array IDs instead of embedded objects
Changed Compilation attributes to readOnly and added CompilationSerializer to provide saving Compilations with links associated
Added compilation show action to backend and fixed compilation_params method to allow link_ids
Extending DS.ActiveModelSerializer instead of DS.RESTSerializer in Compilation model. Using async for links relationship
Changed createCompilationWithSelection method. Now works fine using async in the links relationship
Added compilation content to the template
Link buffer now filters unused links combined with sorting by date addition