GUI Improved: new global option: customize actions of mouse double-click on task list
GUI Improved: show log of trackers from tracker list
GUI Improved: display progress bar of disk space in task properties dialog
GUI Improved: add Torrent History button to toolbar of task list
GUI Improved: add task list button to toolbars of Torrent History ad Torrent Share
GUI Improved: remember sort state of task list after program restart
GUI Improved: new icon for Torrent History
GUI Improved: VIP Acceleration can be canceled if a task can not complete for a long time
GUI Bugfix: UNC path can not be set as default download folder in option dialog
Core Bugfix: improve kernel stability
Core Bugfix: improve stability of BHO