Add `bundle install` step

Not obvious to non-rubyists like me.
updated jsfiddle and jsbin examples to work with v1.0.0-PRE.4
updated jsfiddles to use ember-1.0.0-pre.4.js
Allow redirecting from mid-route
Fix typo in docs enumerable `some` method pointed to `every` method in js 1.6
Run container tests
Fix global leaks between tests
Support for skipping packages in tests
Tweak how RSVP is handled in tests
Skip container tests when testing build
Merge pull request #1678 from wagenet/all-tests

Run container tests and related cleanup
Merge pull request #1852 from yoinup/fix-typo

Fix typo in enumerable docs
Updated documentation for the return value of Ember.Array.findProperty() and Ember.Array.find(). Fixes issue #1831
Merge pull request #1855 from craigteegarden/find-findProperty-docs-1831

Updated documentation for the return value of Ember.Array.findProperty()...
Merge pull request #1841 from rlivsey/redirect-from-resource

Allow redirecting from mid-route
lastRenderedTemplate only set if the outlet was main
Merge pull request #1838 from joeytrapp/default-render-into

Calling this.render() in renderTemplate() more than once breaks default into value.
Add documentation stub for Ember.Router

Adding /** @scope Ember.Router.prototype */ makes YUIdoc print out the
entire router definition, without any error message. It doesn't actually
blow up, it just prints source. It's strange.

The method listing don't seem right yet -- it contains methods like
Ember.Route#controllerFor. But it's a start.
Replace outdated injections documentation with initializer documentation

The default injections went away, so this section is now fairly
minimalistic.
Fix wording, remove redundancy