Moved log statement inside the unwrapped scope.

Heartbeat/TimelineViewController.swift

@@ -391,10 +391,10 @@ class TimelineViewController: NSViewController, WKNavigationDelegate
     {
         let url = navigationAction.request.URL
         
-        println("Web view asked to navigate to URL: \(url)")
-
         if let url = url, theProtocol = url.scheme, theCommand = url.host
         {
+            println("Web view asked to navigate to URL: \(url)")
+
             let theArguments = url.pathComponents
             
             if (theProtocol == "http" || theProtocol == "https") && theCommand != "127.0.0.1" && theCommand != "localhost" && theCommand != "192.168.59.103" && !theCommand.hasPrefix("waystone.")