Don't show a popup menu when no torrent is selected.
Launch external programs async and don't block. Closes #1252.
Don't re-announce to trackers when torrent is paused. Closes #1310.
Fix WebUI sort by size/speed for some locales (with comma as decimal point).
Fix WebUI sort by ratio for some locales (with comma as decimal point).
Bring dialog boxes in the front when qbt doesn't have focus.

Code inspired by glassez patch.
Correctly resize 'name' column of the content tab. Closes #1360.
Reuse code in AddNewTorrentDialog. #894.
Correctly restore 'name' column width when loading magnet links in the 'Add new torrent dialog'. Closes #1334.
Merge pull request #1328 from glassez/webui-sort

Fix WebUI sort by size/speed (part 2)
Add button for links in toolbar (fixes #450
Fix qBittorrent run on Windows startup.
Fix nox build. Closes #1368
Merge pull request #1382 from bob23450/master

Fix nox build. Closes #1368
Merge pull request #1375 from glassez/win-startup

Fix qBittorrent run on Windows startup.
Merge pull request #1365 from alfrix/master

Add button for links in toolbar (fixes #450)
Pretty up last commit.
Fix missing percentage signs. Closes #1392.