Add a handlebars example to the template helper documentation
Fix Handlebars version regexp - Fix #2083
Add support for /-separated namespace lookup

The default resolver hook now supports names
like "controller:foo/bar", which resolves to
Foo.BarController, assuming Foo is a registered
namespace.
Upgrade vendored handlebars.js to 1.0.0-rc.3
Update JSBin and JSFiddle links for RC
Merge pull request #2085 from omghax/update-vendored-handlebars

Upgrade vendored handlebars.js to 1.0.0-rc.3
Update Gem dependencies
Merge pull request #2080 from yoinup/template-helper-doc

Add a handlebars example to the template helper documentation
Guard against render(undefined)

render(undefined) was doing absolutely horrible things. I found this
problem because I passed an undefined variable as the first argument.
This ended up changing containers on controllers and doing other
absolutely horrible things.
Fix broken link
Remove reference to therubyracer from README.md 

therubyracer doesn't currently work to build ember.js, and this patch removes an instruction to use it.
Added 1.0.0-rc.1 JSBin and JSFiddle
Remove unused variables
Fix code comment

- Add missing arguments
- Fix order of type and argument name
- Fix argument name
Add missing arguments in code comment
Fix typo

- a Ember -> an Ember
Merge pull request #2089 from tricknotes/fix-broken-link

Fix broken link
Merge pull request #2091 from tricknotes/remove-unused

Remove unused variables
Fix missing reuturn in CollectionView docs

`createChildView` has to return the call to `this._super`, otherwise
everything breaks.
lookup(fullName, { singleton: false })