V8: Angular Divorce: isFunction

[warrenbuckley]

Bye bye angular.isFunction & use Utilities.isFunction

[kjac]

@warrenbuckley good stuff ❤️ I have resolved the merge conflicts.

As it turns out, Utilities isn't loaded on document first load, so it's not applicable for use when detecting if document.angularReady is a function in app.js. However, underscore.js is already loaded at this point, so for now I have replaced Utilities with _ in app.js. See here.

If you're happy with this compromise, I'll merge this PR asap.

[nathanwoulfe]

@kjac how do I magically push to this PR? I have an aliases command for pushing to a pr from a fork, but @warrenbuckley's is a branch, not a fork... There's an additional angular.isFunction I wanted to wipe out before merging...

[nathanwoulfe]

Thanks @warrenbuckley, all good here.
There are still few refs in angular-mocks.js, but I figure those don't really matter - that file is so specific to AngularJs, it will be tossed completely when the UI is rebuilt.