GUI Improved: save the heights of task list pane and Torrent History pane separately

GUI Improved: keep the tasks which occur downloading error together when sort task list by state

GUI Improved: add confirm dialog when restore the display of hidden torrents in Peer Share list

GUI Bugfix: Auto-Shutdown at specified time does not work

GUI Bugfix: open URL using system default browser instead of IE

GUI Bugfix: torrent file icon should not use the program icon

GUI Bugfix: when adding new Torrent, all files will be downloaded instead of only selected

GUI Bugfix: task position in the task list should not be changed when press Home/End

GUI Bugfix: the setting of View - Task list - Show filter does not work when program starts

Core Bugfix: handle torrent file not using UTF-8 encoding