Initialize the relationships after loading all the models
Initialize the relationships after loading all the models

* This solves a very common issue caused by loading models in different
  orders that depend on each other to be loaded before the association
  can be initialized.

bterlson/dm-more,mattetti/dm-more,merbjedi/dm-more-hacked,cachafla/dm-more,bterlson/dm-more,mattetti/dm-more,merbjedi/dm-more-hacked