qBittorrent 3.3.4

- FEATURE: Download more pieces in "Download first and last pieces first" feature
- FEATURE: Unlock first column in peerlist too
- FEATURE: Add "Hide zero values" option.
- FEATURE: Add a "remaining" column to the torrent content model
- FEATURE: Allow to toggle columns in peerlist
- FEATURE: Add ability to filter log messages by type.
- FEATURE: Add ability to write the log to file.
- FEATURE: Add 'never show again' checkbox/pref to auto-exit confirm dialog
- PERFORMANCE: Perform fastresume data saving in separate thread
- PERFORMANCE: Optimize session startup
- BUGFIX: Save resume data using QSaveFile (Qt5 only). This reduces chances of corrupt files.
- BUGFIX: Check torrent file permissions before opening
- BUGFIX: Always update native session's announce_ip setting
- BUGFIX: Fix loading *.magnet files from watched folders.
- BUGFIX: Fix upgrade corrupted fastresume file
- BUGFIX: Fix total values for "Seeds" & "Peers"
- BUGFIX: Fix potential race condition.
- BUGFIX: Don't merge trackers for private torrents.
- BUGFIX: Fix double buttons in "Add New Torrent" dialog.
- BUGFIX: Fix malformed date header in email.
- BUGFIX: Save "Run external program" input as is.
- BUGFIX: Enable "filename" column in peers list again. Crash is fixed now.
- BUGFIX: Don't display warning when folder name stayed the same after rename.
- BUGFIX: Fix selection of Portuguese translation files.
- BUGFIX: Fix selection of Esperanto locale.
- BUGFIX: Fix "caja" file manager opens the file instead of opens the directory.
- BUGFIX: Fix periodic latency spikes on Windows with WiFi connections.
- BUGFIX: Potentially fix a random crash coming from the sidepanel
- WEBUI: Fix max_ratio precision.
- WEBUI: Fix JavaScript exception on WebUI load
- WEBUI: Fix translation
- WEBUI: Submit the label in the new label dialog on pressing enter key
- WEBUI: Check WebUI username and password length.
- WEBUI: Minor changes in CSS styles
- WEBUI: Add "Added on" and "Completion on" fields to query/torrents query response
- WEBUI: Do not try to parse request message when content-length is 0
- WEBUI: Support SSL certificate bundles.
- WEBUI: Change the order of the values of speed labels
- WEBUI: Bump WebUI API_VERSION
- SEARCH: Update PirateBay plugin.
- SEARCH: Added TorLock search engine
- COSMETIC: Fix splash screen staying on top of all windows.
- COSMETIC: Rearrange advanced settings
- COSMETIC: Cleanup "about" dialog
- COSMETIC: Cleanup "Add New Torrent" dialog
- COSMETIC: Use short date in addnewtorrentdialog
- COSMETIC: Change "Free disk space" to "Free space on disk"
- COSMETIC: Let OS handle DPI scaling for now. Should let Qt do the work when it's more mature.
- COSMETIC: Put comment_lbl in QScrollArea.
- COSMETIC: Change the order of the values of speed labels
- COSMETIC: Cleanup the Log tab
- COSMETIC: Cleanup the RSS tab
- OTHER: Set "Show splash screen on start up" option default to off
- OTHER: Support for cross-compilation with MXE
- OTHER: Add basic (and unofficial) cmake support
- OTHER: Move some URLs overs to https
- OTHER: Add appveyor support
- OTHER: TravisCI: switch to Trusty image.
- OTHER: Many other internal code restructuring, cleaning and fixing.