Use ConsoleKit to shutdown the system instead of HAL (deprecated)

use UPower to suspend the system instead of HAL (deprecated)
Rewrote computer shutdown/suspend code to avoid data loss

src/qtlibtorrent/qbtsession.h

@@ -69,6 +69,7 @@ public:
 private:
   explicit QBtSession();
   static QBtSession* m_instance;
+  enum shutDownAction { NO_SHUTDOWN, SHUTDOWN_COMPUTER, SUSPEND_COMPUTER };
 
 public:
   static QBtSession* instance();
@@ -267,6 +268,7 @@ private:
   // Tracker
   QPointer<QTracker> m_tracker;
   TorrentSpeedMonitor *m_speedMonitor;
+  shutDownAction m_shutdownAct;
 
 };