[FEATURE ember-routing-add-model-option] Enable by default.

As discussed in the core team meeting on 2014/02/28.

http://emberjs.com/blog/2014/03/04/core-team-meeting-minutes-2014-02-28.html
ES6 ember-metal, ember-runtime, ember-debug: 1.
ES6 ember-metal, ember-runtime, ember-debug: 2.
ES6 ember-metal, ember-runtime, ember-debug: 3.
ES6 ember-metal, ember-runtime, ember-debug: 4.
ES6 ember-metal, ember-runtime, ember-debug: 5.
ES6 ember-metal, ember-runtime, ember-debug: 6.
ES6 ember-metal, ember-runtime, ember-debug: 7.
Merge pull request #4374 from fivetanley/es6-ember-metal

ES6 ember-metal && ember-runtime && ember-debug
ES6 ember-views: 1.
ES6 ember-views: 2.
Merge pull request #4486 from trek/es6-ember-views

ES6 modules for ember-views
Merge pull request #4477 from rjackson/enable-ember-routing-add-model-option

[FEATURE ember-routing-add-model-option] Enable by default.
[FEATURE query-params-new] Hopefully final iteration

- default value'd QPs no longer show up in URL
- default value's type is used to determine how
  deserialized QPs are cast into controller prop values
- added queryParams Route config hash with properties
  `replace` and `refreshModel` to configure changed
  QP property behavior
- better code organization

/w @raytiley's help
Merge pull request #4468 from machty/query-params-v3

[FEATURE query-params-new] Hopefully final iteration
[DOC] Correction for `ActionHandler` implementing classes