v0.4.4

• fixed scanning breaking if file metadata contains invalid UTF-8 characters (#576)
• updated aurora.js and its plugins to latest versions; this fixes some (but not all) playback problems on Chromium
• update database automatically when audio file uploaded to a publicly shared folder
• Ampache and Shiva APIs: return album tracks sorted by track number
• Shiva API: track now has field 'ordinal' instead of 'number' to follow the API specification (#453)
• the release package in github is now unsigned (v0.4.3 was signed with ownCloud certificate); ownCloud marketplace and Nextcloud app store will have packages signed with the respective certificates (#574)