Experimental DB pool + fixed stat overflow on equips

Implemented EXPERIMENTAL DBCP (connection pool), trying to improve
concorrent access to DB. Added door portals on Kerning Square. Fixed
equipments getting stat overflow when upgrading stats. Fixed expiring
pets crashing the client in some cases.

src/client/MapleFamily.java

@@ -21,6 +21,7 @@
  */
 package client;
 
+import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
@@ -38,7 +39,8 @@ public class MapleFamily {
 
 	public MapleFamily(int cid) {
 		try {
-			PreparedStatement ps = DatabaseConnection.getConnection().prepareStatement("SELECT familyid FROM family_character WHERE cid = ?");
+                        Connection con = DatabaseConnection.getConnection();
+			PreparedStatement ps = con.prepareStatement("SELECT familyid FROM family_character WHERE cid = ?");
 			ps.setInt(1, cid);
 			ResultSet rs = ps.executeQuery();
 			if (rs.next()) {
@@ -46,6 +48,7 @@ public class MapleFamily {
 			}
 			ps.close();
 			rs.close();
+                        con.close();
 			getMapleFamily();
 		} catch (SQLException ex) {
                     ex.printStackTrace();
@@ -54,7 +57,8 @@ public class MapleFamily {
 
 	private static void getMapleFamily() {
 		try {
-			PreparedStatement ps = DatabaseConnection.getConnection().prepareStatement("SELECT * FROM family_character WHERE familyid = ?");
+                        Connection con = DatabaseConnection.getConnection();
+			PreparedStatement ps = con.prepareStatement("SELECT * FROM family_character WHERE familyid = ?");
 			ps.setInt(1, id);
 			ResultSet rs = ps.executeQuery();
 			while (rs.next()) {
@@ -72,6 +76,7 @@ public class MapleFamily {
 			}
 			rs.close();
 			ps.close();
+                        con.close();
 		} catch (SQLException sqle) {
                     sqle.printStackTrace();
 		}