controllerAs and bindToController

[tomwayson]

Update map and layer directives to use controllerAs and bindToController instead of injecting $socpe into controllers.

resolves #109

[jwasilgeo]

@tomwayson this looks really, really great!

Just in terms of minor housekeeping, I was looking over the inline comments and wondered if we should update them? I was struggling with thinking of the right terms to use where we previously made references to $scope in the changed files. As an aside, I like how the bindToController docs word it.

For example, in esriMap:

• here; and other similar comments
• here; change param names to the func, change the func name, etc?

PS: Or, no worries, and we can revisit if we want to when looking into documentation.

[tomwayson]

Thanks @jwasil, I will address the comments/function name as part of later refactoring, or as you say, we can do it when we get into the docs.

[jwasilgeo]

👍 !