Update adding-child-routes.md

It wasn't clear that a new empty function() needs to be added to resource() in order for child routes to work at all. This commit briefly explains that this empty functions is necessary
Initial Run Loop Page
Update docs and fixtures for Ember Data 1.0.0-beta.6.
Update JSBin to match guide

Removed aliased properties which were not needed for this guide
Merge pull request #1257 from tekay/patch-1

Update JSBin to match guide
Remove extra '(' in allAreDone example
Merge pull request #1258 from chrishunt/remove-extra-paren

Remove extra '(' in allAreDone example
Add callout for EmberConf on the homepage.
Merge pull request #1259 from rjackson/add-emberconf-callout

Add callout for EmberConf on the homepage.
Make EmberConf logo link to emberconf.com.
Correct GitHub tag for data
Merge pull request #1260 from duggiefresh/master

Correct GitHub tag for data
AFAIK transitionToRoute takes routeName with '.'
Merge pull request #1261 from sabithksme/patch-1

AFAIK transitionToRoute takes routeName with '.'
change to standard jquery ajax call

jQuery.ajax expects (url, settings) as parameters.  The ajax call to /error-notification used (url, type, settings), which generates a 'GET' in latest version of Chrome, even if 'PUT' is given as the second parameter.
Update Person occurrences to App.Person

In some parts of the guide there is a undeclared Person variable, where the expected is App.Person. This cause confusion, for these that are new to ember.
Merge pull request #1264 from marcioj/patch-1

Update Person occurrences to App.Person
Add a recipe for Google Analytics tracking.
Publish 1.4.0-beta.4.
Show correct version on beta progress diagram.