Prevent XML error from blowing up integration test

src/NzbDrone.Test.Common/NzbDroneRunner.cs

@@ -100,8 +100,11 @@ namespace NzbDrone.Test.Common
         private void SetApiKey()
         {
             var configFile = Path.Combine(AppData, "config.xml");
+            var attempts = 0;
 
-            while (ApiKey == null)
+            while (ApiKey == null && attempts < 50)
+            {
+                try
                 {
                     if (File.Exists(configFile))
                     {
@@ -112,6 +115,13 @@ namespace NzbDrone.Test.Common
                             ApiKey = apiKeyElement.Value;
                         }
                     }
+                }
+                catch (Exception ex)
+                {
+                    Console.WriteLine("Error getting API Key from XML file: " + ex.Message, ex);
+                }
+
+                attempts++;
                 Thread.Sleep(1000);
             }
         }