From: Alan Webb <alan_webb@us.ibm.com>

Fixes:
  [1] Sharing exception on remote OAR management
  [2] Occasional 505 error talking to Tomcat
  [3] Occasional mono aborts caused by mlog in the
      script engine's app domain (mono 2.4)

OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs

@@ -460,6 +460,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             // request.Credentials = credentials;
 
             request.ContentLength = 0;
+            request.KeepAlive     = false;
 
             WebResponse response = request.GetResponse();
             Stream file = response.GetResponseStream();