GUI Improved: add Hash-check thread priority as an option
GUI Improved: add "Remove task only" confirmation
GUI Bugfix: disable file location change for paused tasks
GUI Bugfix: can not auto shutdown computer when desktop is locked
GUI Bugfix: the auto-stopped task can not upload
GUI Bugfix: fix the win98/me auto shutdown issue
GUI Bugfix: fix the dde regarding file association
Core Improved: add task option: peer info exchange enable
Core Bugfix: UDP tracker DNS resolve can cause stop response for 2s
Core Bugfix: fix the issue when one UDP tracker in a tracker group can not connect
Core Bugfix: continue download at startup can not work if crashed last time
Core Bugfix: fix one crash issue when connections are unstable
