about: Make version check address a variable

SparkleShare/Common/AboutController.cs

@@ -32,6 +32,7 @@ namespace SparkleShare {
         public delegate void UpdateLabelEventDelegate (string text);
 
         public readonly string WebsiteLinkAddress       = "https://www.sparkleshare.org/";
+        public readonly string VersionCheckAddress      = "https://www.sparkleshare.org/version";
         public readonly string CreditsLinkAddress       = "https://github.com/hbons/SparkleShare/blob/master/legal/Authors.txt";
         public readonly string ReportProblemLinkAddress = "https://www.github.com/hbons/SparkleShare/issues";
         public readonly string DebugLogLinkAddress      = "file://" + SparkleShare.Controller.Config.LogFilePath;
@@ -62,7 +63,7 @@ namespace SparkleShare {
             Thread.Sleep (500);
 
             var web_client = new WebClient ();
-            var uri = new Uri ("https://www.sparkleshare.org/version");
+            var uri = new Uri (VersionCheckAddress);
 
             try {
                 string latest_version = web_client.DownloadString (uri);
@@ -80,3 +81,4 @@ namespace SparkleShare {
         }
     }
 }
+