Add warning for network errors

Author: steverab

TranzportMac.xcodeproj/project.pbxproj

@@ -95,9 +95,9 @@
 		AA5C45E11B02835800923BC3 /* Helpers */ = {
 			isa = PBXGroup;
 			children = (
+				AAAC8DE91B04E54100D4D5E9 /* StationFormatter.swift */,
 				AAC0FF221B029B5E00B320EA /* StartupLaunch.swift */,
 				AAAC8DE61B04E44600D4D5E9 /* External */,
-				AAAC8DE91B04E54100D4D5E9 /* StationFormatter.swift */,
 			);
 			name = Helpers;
 			sourceTree = "<group>";

TranzportMac/APIWrapper.swift

@@ -19,7 +19,7 @@ class APIWrapper {
         let station = defaults.objectForKey("station") as! String
         request(.GET, baseURL + "departures", parameters: ["station": station]).responseJSON { (_, _, JSON, error) in
             if let err = error {
-                
+                failure(error: err)
             } else {
                 if let response = JSON as! [[String: AnyObject]]? {
                     success(departures: Departure.departuresFromArray(response))

TranzportMac/AppDelegate.swift

@@ -111,10 +111,14 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         } else {
             statusBarItem.title = "⚠"
 
-            let noItemsItem = NSMenuItem()
-            noItemsItem.title = "No departures available for this station"
+            var noItemsItem = NSMenuItem()
+            noItemsItem.title = "No departures available"
+            noItemsItem.action = nil
+            menu.addItem(noItemsItem)
+            
+            noItemsItem = NSMenuItem()
+            noItemsItem.title = "Check station spelling and internet connection"
             noItemsItem.action = nil
-            noItemsItem.keyEquivalent = ""
             menu.addItem(noItemsItem)
         }