Adding Update User feature, updated Angular version

Update User Feature
------------------------------

* Scala controller contains updateUser method
* New route/API endpoint to support a PUT function to update user
* Test coverage for the updateUser method in UserIT.scala
* New Coffeescript controller and Angular template to allow editing of user

Updated Angular version
------------------------------

* Moved from 1.2.13 to 1.3.6 to fix bug that stripped BSON Document features within the Angular controller.  Would cause backend failures.