Thanks a lot to the people who helped make this release come to life.

FEATURE: Add file association settings to program preferences (Windows)
FEATURE: Add setting to ignore slow torrents in queueing system
FEATURE: Add advanced setting to announce to all trackersFEATURE: Add support for anonymous mode (libtorrent >= v0.16)
FEATURE: Add quick "set as default save path" checkbox to torrent addition dialog (sledgehammer999)
BUGFIX: Add tray menu entry for toggling window visibility
BUGFIX: Fix execution log lines selection and copying
BUGFIX: Reduce CPU usage when running Web UI
BUGFIX: Save RSS items to disk regularly for safety
BUGFIX: Fix ratio calculation (use all_time_download)
BUGFIX: Fix torrent upload issues (Web UI)
BUGFIX: Fix some IE incompatibilities (Web UI)
COSMETIC: Display speed at the beginning of the Window title
COSMETIC: Several cosmetic fixes to the Web UI
COSMETIC: Make top toolbar follow system style
OTHER: Display libraries versions in about dialog (sledgehammer999)
OTHER: Display qBittorrent version in Web UI about dialog