Fix example project and hide mutations in autocomplete API (GitHawkApp#18)

* fix example building

* safer API for registering autocomplete attributes

Author: rnystrom

Examples/Examples/ViewController.swift

@@ -41,7 +41,11 @@ class ViewController: MessageViewController, UITableViewDataSource, UITableViewD
 
         // Set custom attributes for an autocompleted string
         let tintColor = UIColor(red: 0, green: 122/255, blue: 1, alpha: 1)
-        messageAutocompleteController.autocompleteTextAttributes = ["@": [.font: UIFont.preferredFont(forTextStyle: .body), .foregroundColor: tintColor, .backgroundColor: tintColor.withAlphaComponent(0.1)]]
+        messageAutocompleteController.registerAutocomplete(prefix: "@", attributes: [
+            .font: UIFont.preferredFont(forTextStyle: .body),
+            .foregroundColor: tintColor,
+            .backgroundColor: tintColor.withAlphaComponent(0.1)
+            ])
 
         messageAutocompleteController.delegate = self
 

Examples/Podfile.lock

@@ -9,8 +9,8 @@ EXTERNAL SOURCES:
     :path: ../MessageViewController.podspec
 
 SPEC CHECKSUMS:
-  MessageViewController: 619f0c8253f4eb36f69c906d5a38592de857a433
+  MessageViewController: 3aa9b7b422677de3a8bc026ef39b0c0f83ccc185
 
 PODFILE CHECKSUM: 74208e93c3daf191e681c80fcdf956f1603f9016
 
-COCOAPODS: 1.4.0.rc.1
+COCOAPODS: 1.4.0