Log Message:
picard: update to 2.3.1.

# Version 2.3.1 - 2020-02-27

## Bug-fix
- [PICARD-1745] - Packaged libdiscid is not compatible with macOS 10.12
- [PICARD-1748] - Many release events can cause the versions context menu to overflow
- [PICARD-1750] - Existing acoustid_fingerprint tags are not considered for \ 
AcoustID submission
- [PICARD-1754] - DEL always removes release or file from main window
- [PICARD-1756] - Plugin update fails to compare plugin versions with double \ 
digit versions
- [PICARD-1757]` is used in a script
- [PICARD-1760] - Prevent duplicates in top tags editor
- [PICARD-1762] - Dropping a PDF file on cover art image box doesn't work
- [PICARD-1765] - Adding uppercase tags to preserved tags list is not handled \ 
correctly
- [PICARD-1772] - Unexpected results with `$num` function
- [PICARD-1773] - Untrapped error on `$mod` with zero input
- [PICARD-1774] - `$lenmulti` with missing name returns "1"

## New Feature
- [PICARD-1743] - Add script functions `$sortmulti` and `$reversemulti` to sort \ 
and reverse multi-value variables
- [PICARD-1751] - Provide a `%_releasecountries%` variable

## Improvement
- [PICARD-1746] - Change Generate AcoustID Fingerprints shortcut to Ctrl+Shift+Y \ 
/ ⌘⇧Y
- [PICARD-1752] - Use preferred release countries to select a matching release \ 
country if there are multiple
- [PICARD-1755]
- [PICARD-1759] - Make editing tags in top tags list more intuitive
- [PICARD-1771] - Completely ignore release types set to zero in preferred releases

# Version 2.3 - 2020-02-17

## Bug-fix
- [PICARD-1739] - Update check does not handle alpha, beta and rc versions properly
- [PICARD-1744] - Invalid ignore path regex can crash Picard

## Improvement
- [PICARD-1740] - Save originalfilename to ASF tags

# Version 2.3.0rc1 - 2020-02-11

## Bug-fix
- [PICARD-1688] - "Submit AcoustIDs" fails with many tracks
- [PICARD-1719] - `$unset` marks tag for deletion
- [PICARD-1724]
- [PICARD-1725] - Fingerprint indicator rendering artifacts
- [PICARD-1726] - Crash when closing options quickly before plugin list got loaded
- [PICARD-1727] - Performer tag in metadata list is not translated
- [PICARD-1733] - App does not start on macOS 10.12
- [PICARD-1736] - "Generate AcoustID Fingerprints" is too long for the \ 
toolbar

## Improvement
- [PICARD-1716]
- [PICARD-1717] - Backup config file on update
- [PICARD-1720] - Add script function `$slice` to extract a portion of a \ 
multi-value variable
- [PICARD-1721] - Add script function `$join` to join the elements of a \ 
multi-value variable
- [PICARD-1723] - Match to album should consider the disc number
- [PICARD-1729] - Add scripting function `$datetime` to return the current date \ 
and time
- [PICARD-1737] - Add keyboard shortcut Ctrl+Alt+F for "Generate \ 
Fingerprints"
- [PICARD-1738] - Load a recording URL entered into the search field as \ 
standalone recording

# Version 2.3.0b1 - 2020-01-30

## Bug-fix
- [PICARD-239] in tagger script
- [PICARD-965] - Items in tagger scripts list are squished
- [PICARD-1054] - Picard swallows values of Qt command line arguments
- [PICARD-1218] - Script names aren't truncated properly
- [PICARD-1312] - Hotkeys for buttons do not work on macOS
- [PICARD-1565] - Picard ignores results in Acoust ID web service response
- [PICARD-1592] - APEv2: Read tags case insensitive
- [PICARD-1625] - UI unresponsive while matching files to release
- [PICARD-1626] - Locales in Options > Metadata are not translated and not sorted
- [PICARD-1629] - Duration for AAC files with APEv2 tags is wrong
- [PICARD-1658] - macOS: System wide libdiscid is used instead of the bundled one
- [PICARD-1662] embedded images
- [PICARD-1664] - Cluster lookup does not use preferred release types
- [PICARD-1667] - Some scripting functions are always true
- [PICARD-1668] - Read fails if mp4 file has "disk" tag set but empty
- [PICARD-1675] - Allow disabling auto update for Windows builds
- [PICARD-1678] - Picard crashes if result from search server contains \ 
non-integer scores
- [PICARD-1693] - Position and size of log view and activity history are not \ 
preserved
- [PICARD-1699] - On scan asking the user to enable the fingerprinting does \ 
always abort the scan
- [PICARD-1700] - Crash with PyQt5 when opening cover art context menu
- [PICARD-1709]
- [PICARD-1711] - Cannot delete lyrics from ASF, ID3, MP4 and APE files

## New Feature
- [PICARD-34] - Add a fingerprint indicator
- [PICARD-118] - Windows: Provide a portable Picard version
- [PICARD-125] - Support for AC3
- [PICARD-170] - Allow selecting displayed columns
- [PICARD-714] - Allow user to reorder fields in the lower pane
- [PICARD-991] - Allow calculating AcoustID fingerprints for matched recordings
- [PICARD-1098] - MP4: Support custom tags
- [PICARD-1521]" ID3 tag
- [PICARD-1656] - Allow setting cover art for clusters
- [PICARD-1673] - Show progress in Windows taskbar
- [PICARD-1674] - Show progress in Linux docks / taskbar supporting the \ 
Unity.LauncherEntry DBus interface
- [PICARD-1677] - Option to ignore tags for file changed status
- [PICARD-1684] - Allow re-ordering multi-value tags

## Improvement
- [PICARD-115] - Display 'YYYY', 'MM' and 'DD' in date input field when value \ 
not available
- [PICARD-321] - Backslash support in filenames if Windows compatibility is disabled
- [PICARD-1260] - Sort entries in Clusters more "naturally"
- [PICARD-1349]
- [PICARD-1401] - CD Lookup dialog does not make it clear how to submit a disc ID
- [PICARD-1402] - macOS: Register for supported file types to open with Finder \ 
or drag and drop on dock icon
- [PICARD-1467] - Provide signed Windows installer
- [PICARD-1523] - Make Picard case-agnostic for "Preserve tags from being \ 
cleared"
- [PICARD-1589]
- [PICARD-1628] - Make APEv2 tags with AAC optional
- [PICARD-1631] - Notarize macOS app
- [PICARD-1646] - Respect preferred release types when scanning tracks
- [PICARD-1650] - Select / load multiple items from search results
- [PICARD-1652]
- [PICARD-1659] - Natural sorting for search results
- [PICARD-1661] - Improve preserved tags autocomplete
- [PICARD-1665] - Disable uninstall for globally installed plugins
- [PICARD-1666] - Consider video / audio when comparing files to tracks
- [PICARD-1671] - Rework Options > Tags page
- [PICARD-1672]
- [PICARD-1680] - Select / load multiple items from CD lookup results
- [PICARD-1682] - Multiline editing for lyrics and comments
- [PICARD-1683] - Autocompletion when editing media, releasetype, releasecountry \ 
and releasestatus tags
- [PICARD-1686] - Always keep [non-album tracks] entry on top
- [PICARD-1692] - Change sliders to jump to clicked position
- [PICARD-1695] - Make script editor UI consistent with other option pages
- [PICARD-1712] - Use Ctrl+D as keyboard shortcut to remove albums or files
- [PICARD-1714] - Focus search input with Ctrl+F
- [PICARD-1715] - Allow changing file extension by manipulating the %_extension% \ 
variable in renaming script

## Task
- [PICARD-1406] - Refactor Metadata.set and metadata.__setitem__
- [PICARD-1465] - Add Picard to Windows Store
- [PICARD-1596] - Automate PyPI deployment
- [PICARD-1653] - macOS: Enable Hardened Runtime
- [PICARD-1669] - Build Windows 10 MSIX app package
- [PICARD-1703] - Upgrade to PyInstaller 3.6