Added "show regions" console command that displays the list of regions in that instance and their X , Y locations. (as requested/suggested by ckrinke)

OpenSim/Region/Application/OpenSimMain.cs

@@ -768,6 +768,13 @@ namespace OpenSim
                         m_log.Error("Shared Module: " + module.Name);
                     }
                     break;
+
+                case "regions":
+                    m_sceneManager.ForEachScene(delegate(Scene scene)
+                    {
+                        Console.WriteLine("Region Name: " + scene.RegionInfo.RegionName + " , Region XLoc: " + scene.RegionInfo.RegionLocX + " , Region YLoc: " + scene.RegionInfo.RegionLocY);  
+                    });
+                    break;
             }
         }