- Replaced the 'editable' directive with 'dynamicName' which
  allows for, well, dynamic names

- Finished the saveObjects function which is triggered on save
  of the changelist_form and will allow to send only the changed
  data to be sent to the server instead of every subform

- Added ModelFromset class to api_views.py which handles the
  serialization of the data you want to update from changelist_form

- Overwrote the get_identity method in the DynamicFieldsModelSerializer
  to look for 'pk' rather then 'id' when trying to identify objects

- Added URL to send changed data from changelist_form to the newly
  added ModelFormset
Merge branch 'master' of https://github.com/austinhuminski/angular-django-admin