Brasero

Bugs fixed and enhancements:

• Remove libegg multidrag treeview support for in-built 'GtkFileChooser' (sid)
• cdrkit: Add better error message for "Unsupported sector size" errors (sid)
• cdrdao: Add better error message for "Unsupported track mode" errors (sid)
• libbrasero-burn: Fix incorrect condition during error check (sid)
• Replace 'BaobabCellRendererProgress' with native 'GtkCellRendererProgress' (sid)
• Fix grammar in help (Anders Jonsson)
• Update confirmation dialog logic to properly trigger cancellation dialog (John Cardullo)
• burn-dialog: Use 'media-optical' for notifications (sid)
• Prefer 'application/vnd.efi.iso' MIME type (sid)
• src: Fix 'GtkSpinButton' filling vertical space (sid)
• libbrasero-burn: Fix incorrect plugin version comparison (sid)
• checksum: Default to SHA256 rather than MD5 (David King)

Updated translations for: Abkhazian, Basque, Catalan, Chinese (China), Danish, French, Friulian, Georgian, German, Icelandic, Indonesian, Interlingue, Karbi, Kazakh, Nepali, Occitan, Portuguese, Russian, Slovenian, Spanish, Thai, Turkish, Ukrainian, Uzbek (Latin).