root-level AppController

[jasonkuhrt]

It is useful and often necessary to have a root-level controller. Given we cannot create one because meteor doesn't allow us to manually do it I suggest meteor_angularjs automatically creates a ng-controller="AppController" on the html element.

Will you accept a pull request to this affect?

[lvbreda]

I certainly will, thank you !

[jasonkuhrt]

@lvbreda awesome, I will give it a shot now.