Roundcube Webmail 1.4.3

What's new in this version:

Enigma:
- Fix so key list selection is reset when opening key creation form
- Fix so using list checkbox selection does not load the key preview frame
- Fix generation of key pairs for identities with IDN domains
- Display IDN domains of key users and identities in UTF8
- Fix bug where "Send unencrypted" button didn't work in Elastic skin

Managesieve: Fix bug where it wasn't possible to save flag actions

Markasjunk: Fix bug where marking as spam/ham didn't work on moving messages with drag-and-drop

Password: Make chpass-wrapper.py Python 3 compatible

Elastic:
- Fix disappearing sidebar in mail compose after clicking Mail button
- Fix incorrect aria-disabled attribute on Mail taskmenu button in mail compose
- Fix bug where it was possible to switch editor mode when 'htmleditor' was in 'dont_override'
- Fix text selection in recipient inputs
- Fix missing Close button in "more recipients" dialog
- Fix non-working folder subscription checkbox for newly added folders

Fix:
- regression where "Open in new window" action didn't work
- PHP Warning: array_filter() expects parameter 1 to be array, null given in subscriptions_option plugin
- unexpected error message when mail refresh involves folder auto-unsubscribe
- recipient duplicates in print-view when the recipient list has been expanded
- bug where files in skins/ directory were listed on skins list
- bug where message parts with no Content-Disposition header and no name were not listed on attachments list
- display issues with mail subject that contains line-breaks
- invalid Content-Transfer-Encoding on multipart messages - Mail_Mime fix
- regression where using an absolute path to SQLite database file on Windows didn't work
- using unix:///path/to/socket.file in memcached driver