Avoid parent's implicit index route clobbering child's explicit index.

Fixes emberjs/ember.js#2318.
Actions should be unregistered when destroying virtual views
Merge pull request #2363 from stefanpenner/improveInitialization

$.ready initializations should not auto run.
deprecate Ember.Application#initialize

This was never intending to be supported. It was
used to deal with app initialization shortcomings.
Hopefully all of those have now been dealt with.

In situations where default initialization behaviour
is not wanted please use Ember.Application#deferReadiness
and Ember.Application#advanceReadiness.
Merge pull request #2312 from sebastianseilund/render-helper-with-models

Fix for using {{render}} with same template multiple times
Merge pull request #2337 from viki-org/explicit-index

Avoid parent's implicit index route clobbering child's explicit index.
Fix deprecation warnings in tests
Merge pull request #2364 from stefanpenner/deprecatedAppInitialize

deprecate Ember.Application#initialize
deprecate Ember.Application#initialize

This was never intending to be supported. It was
used to deal with app initialization shortcomings.
Hopefully all of those have now been dealt with.

In situations where default initialization behaviour
is not wanted please use Ember.Application#deferReadiness
and Ember.Application#advanceReadiness.