Breaking changes:
* In color themes, 'torrentlist.name.initializing...' is now called
'torrentlist.name.discovering...'
Other changes:
* New torrent list columns: 'status', 'created', 'added', 'started',
'activity', 'completed', 'error'
* New sort orders: 'created', 'added', 'started', 'activity', 'completed'
* New file filter: 'path'
* Listing isolated torrents with <f> <i> now lists only 'name', 'tracker'
and 'error' columns
* Torrent paths and torrent file paths are now normalized so that
'foo/bar/baz' is equal to 'foo/bar/baz/' and even 'foo/./bar/../bar/baz//'
Fixed bugs:
* Listing files crashed if file list was empty (e.g. when torrent was added
by magnet link and metadata wasn't downloaded yet)