fix dispersy db progress handler
update dispersy ref
Merge pull request #624 from LipuFei/devel

Fix dispersy community db update progress bar
updated communication with dispersy
return error on tunnel already registered
updated reference to libswift
changed picker for quicker download
Add Stream button to TorrentListItem
Merge pull request #626 from egbertbouman/stream_hover

Add Stream button to TorrentListItem
restored original dispersy behaviour until tunnels are fixed
Merge pull request #602 from badrock/fix_swift_start

updated communication with dispersy
Fix
WIP: Refactor Tribler to use the new TaskManager class