added admin tab; server status message update

cockatrice/src/tab_admin.h

@@ -0,0 +1,29 @@
+#ifndef TAB_ADMIN_H
+#define TAB_ADMIN_H
+
+#include "tab.h"
+
+class AbstractClient;
+
+class QGroupBox;
+class QPushButton;
+
+class TabAdmin : public Tab {
+	Q_OBJECT
+private:
+	AbstractClient *client;
+	QPushButton *updateServerMessageButton;
+	QGroupBox *adminGroupBox;
+	QPushButton *unlockButton, *lockButton;
+private slots:
+	void actUpdateServerMessage();
+	
+	void actUnlock();
+	void actLock();
+public:
+	TabAdmin(AbstractClient *_client, QWidget *parent = 0);
+	void retranslateUi();
+	QString getTabText() const { return tr("Administration"); }
+};
+
+#endif