Added length property to Ember.Map
Use isNone to check tag name
Adds the ability to specify the view class used by the outlet Handlebars helper

Previous to this change, the view class used was always an "OutletView" (Metamorph extension of ContainerView).  This change allows the class to be set while still defaulting to the OutletView
RSVP2
Allow missing whitespace for assertion fot html text

IE8 ignores whitespace between tag.
Merge pull request #2550 from tricknotes/allow-missing-whitesapce

Allow missing whitespace for assertion fot html text
Add tests to deferred mixin
Fixes #2526 - Updates JsFiddle and JsBin links for rc.3
Merge pull request #2 from teddyzeenny/rsvp2-tests

Tests for deferred mixin
fix some typos in the test names
Merge pull request #2554 from ryrych/patch-1

fix some typos in the test names
Fixed view subclasses being instrumented as render.render.*
Use Ember.isNone
Merge pull request #2557 from tricknotes/isNone

Use Ember.isNone
Merge pull request #2553 from robharper/feature/fix-fiddles

Fixes #2526 - Updates JsFiddle and JsBin links for rc.3
Use `Function.prototype.apply` to call `setTimeout` on older IE

In older IE, the host object like a `setTimeout` has no methods that
defined in `Function.prototype`.
Fix test for setTimeout with negative wait for older IE
Merge pull request #2558 from tricknotes/fix-test-about-setTimeout

Fix test for setTimeout with negative wait for older IE
Merge pull request #2555 from caliper-io/view_instrumentation

View subclasses were instrumented as render.render.* (Fixes 2552)
readme paragraph width (for readability)