Merge pull request #122 from hailtondecastro/master

The connection was not being effectively closed due to needing to disconnect first

src/Spring/Spring.Web.Conversation.NHibernate3/Data/NHibernate/Support/SessionPerConversationScope.cs

@@ -435,9 +435,13 @@ namespace Spring.Data.NHibernate.Support
                         conversation.RootSessionPerConversation = null;
                     }
                     else
-                    {
-                        if (tmpSession.IsConnected)
-                            tmpSession.Disconnect();
+                    {
+                        if (tmpSession.IsConnected)
+                        {
+                            IDbConnection conn = tmpSession.Disconnect();
+                            if (conn != null && conn.State == ConnectionState.Open)
+                                conn.Close();
+                        }
                     }
                     RemoveSession(tmpSession);
                 }