Back button working.

app/PostViewController.swift

@@ -55,12 +55,16 @@ class PostViewController: UIViewController, UIGestureRecognizerDelegate {
 		
 		super.viewDidLoad()
 		self.loadPost(id: id)
+		
+		// Set button action
+		barButton.addTarget(self, action: #selector(self.back), for: .touchUpInside)
 	}
 	
 	//TODO implement all the logic for post loading here, including iboutlts
 	
 	
 	func back() {
+		print("POSTCONTROLLER:DEBUG: Back")
 		self.dismiss(animated: true, completion: nil)
 	}