Show Post VC though AppController

[regnerjr]

We are using App controller to manage the showing and hiding of our View Controllers. The Table View has a button for making a new post which should be calling out to the App Coordinator to decide what to do. (it might be that the user is browsing without an account and should not be able to post)

Here is a link to the relevant section of code.

https://github.com/iOS-Connect/parse-twitter-with-push/blob/master/Parse-Twitter/Parse-Twitter/ChatTableViewController.swift#L40

[regnerjr]

Hey Parvis, Thought this might be a good issue for you if you're looking to work more on this app. I could tell you were interested in this AppController idea.

Turns out in my rush I have named this wrong too! Should be AppCoordinator. I'll file a second issue for this change.

Here is a blog post about this idea: http://khanlou.com/2015/10/coordinators-redux/