When we start the appearance saving thread, make sure we set the culture to En_US so that a different culture doesn't save values with commas as decimal points, etc.

This will hopefully stop giants stalking the grid.
See http://opensimulator.org/mantis/view.php?id=5614

OpenSim/Region/CoreModules/Avatar/AvatarFactory/AvatarFactoryModule.cs

@@ -305,6 +305,11 @@ namespace OpenSim.Region.CoreModules.Avatar.AvatarFactory
 
         private void HandleAppearanceSave(UUID agentid)
         {
+            // We must set appearance parameters in the en_US culture in order to avoid issues where values are saved
+            // in a culture where decimal points are commas and then reloaded in a culture which just treats them as
+            // number seperators.
+            Culture.SetCurrentCulture();
+
             ScenePresence sp = m_scene.GetScenePresence(agentid);
             if (sp == null)
             {