Add CustomServerDialog from mana client.

Based on commits:
  commit 98be39a094cc20f513da1847c553513682e4eeae
  Author: Yohann Ferreira <yohann_dot_ferreira_at_orange_dot_efer>
  Date:   Mon Nov 21 21:07:59 2011 +0100

  commit 8cf8f82d0b933dab43372fb0afdda58687ce6af6
  Author: Yohann Ferreira <yohann_dot_ferreira_at_orange_dot_efer>
  Date:   Wed Nov 23 19:01:08 2011 +0100

  commit 55349d03c72de32159eab8bbaf36ef3504572c92
  Author: Thorbjørn Lindeijer <thorbjorn@lindeijer.nl>
  Date:   Thu Jan 12 23:43:24 2012 +0100

  commit 3567d27ac0a472c90644ea643b48f7e85c767118
  Author: Thorbjørn Lindeijer <thorbjorn@lindeijer.nl>
  Date:   Sat Jan 14 14:00:06 2012 +0100

1 files changed, 98 insertions, 0 deletions

diff --git a/src/gui/customserverdialog.h b/src/gui/customserverdialog.h
new file mode 100644
index 000000000..25c320e81
--- /dev/null
+++ b/src/gui/customserverdialog.h
@@ -0,0 +1,98 @@
+/*
+ *  The Mana Client
+ *  Copyright (C) 2011-2012  The Mana Developers
+ *
+ *  This file is part of The Mana Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef CUSTOMSERVERDIALOG_H
+#define CUSTOMSERVERDIALOG_H
+
+class Button;
+class Label;
+class TextField;
+class DropDown;
+class ServerDialog;
+class TypeListModel;
+
+#include "gui/widgets/window.h"
+
+#include "net/serverinfo.h"
+
+#include <guichan/actionlistener.hpp>
+#include <guichan/keylistener.hpp>
+#include <guichan/listmodel.hpp>
+
+
+/**
+ * Server Type List Model
+ */
+class TypeListModel : public gcn::ListModel
+{
+    public:
+        TypeListModel() {}
+
+        /**
+         * Used to get number of line in the list
+         */
+        int getNumberOfElements() { return 2; }
+
+        /**
+         * Used to get an element from the list
+         */
+        std::string getElementAt(int elementIndex);
+};
+
+/**
+ * The custom server addition dialog.
+ *
+ * \ingroup Interface
+ */
+class CustomServerDialog : public Window,
+                     public gcn::ActionListener,
+                     public gcn::KeyListener
+{
+    public:
+        CustomServerDialog(ServerDialog *parent, int index = -1);
+
+        ~CustomServerDialog();
+
+        /**
+         * Called when receiving actions from the widgets.
+         */
+        void action(const gcn::ActionEvent &event);
+
+        void keyPressed(gcn::KeyEvent &keyEvent);
+
+        void logic();
+
+    private:
+        TextField *mServerAddressField;
+        TextField *mPortField;
+        TextField  *mNameField;
+        TextField *mDescriptionField;
+        Button *mOkButton;
+        Button *mCancelButton;
+
+        DropDown *mTypeField;
+        TypeListModel *mTypeListModel;
+
+        ServerDialog *mServerDialog;
+        // The index of the entry to modify, -1 when only adding a new entry.
+        int mIndex;
+};
+
+#endif // CUSTOMSERVERDIALOG_H