Clarify the expected ordering of Backbone Model and Collection properties
Clarify the expected ordering of Backbone Model and Collection properties

* "defaults", "url", and "urlRoot" may now be at the top of Model, above
  "initialize"
* "model" and "url" may now be at the top of Collection, above "initialize"

RafaelPalomar/girder,girder/girder,Kitware/girder,manthey/girder,RafaelPalomar/girder,jbeezley/girder,Kitware/girder,jbeezley/girder,Kitware/girder,manthey/girder,manthey/girder,girder/girder,RafaelPalomar/girder,RafaelPalomar/girder,jbeezley/girder,jbeezley/girder,girder/girder,girder/girder,RafaelPalomar/girder,Kitware/girder,manthey/girder