Don't use narrow container for the APIs management.
Fix Ember.js 1.0.0.rc8 deprecations.
Move the backend protocol setting to the global API level.

This is because it doesn't make any sense (and isn't really possible) to load
balance against servers operating on different protocols.
Fix API saving since the Mongoid::Dolorean gem was introduced.

The gem requires the inverse relations properly be setup.
Fix duplicate embedded associations getting created on every update.