Law School - Contextual Transcript Link

Added angular function to academicsController to check if user is a Law student. Changed transcript link from hard-coded link to angular variable that gets set to different link if user is a Law student.
@greytoyota This should now become a `data-ng-href` since it's dynamic. (See other examples in our code).

Also https://docs.angularjs.org/api/ng/directive/ngHref