[DOC release] Documents Application.initializer
[FEATURE query-params-new] Model dep state and bugfixes

Query params values are stored in an application cache
using cache keys calculated from Route#serialize params.
At some point this concept will be generalized, but
for now, only query params have model dependent state.
Made Ember.compare() test more readable
Throw error if improperly defined factory
another pass to improve es6 module usage
Ensure that `DefaultResolver` is exported properly.
[FEATURE query-params-new] Fix test case and enable by default

Closes #5020
Remove cruft, nested RenderBuffers haven’t been a thing for a long time.
add ember-metal-views as dependency to ember-views
more WIP
remove events
sample of preorder traversal of views
get tests passing with Renderer
integrate Renderer into ember-views WIP