Log Message:
Update roundcubemail to 0.9.4.

pkgsrc changes:
	* Make installer work.
	* Add various dependency to PHP extensions.

RELEASE 0.9.4
-------------
- Make identities matching case insensitive (#1485480)
- Fix issue where too big message data was stored in cache causing sql errors
  (#1489316)
- Fix iframe scrollbars on webkit desktop browsers (#1489306)
- Fix issue where legacy config was overriden by default config (#1489288)
- Fix newmail_notifier issue where favicon wasn't changed back to default
  (#1489313)
- Fix setting of Junk and NonJunk flags by markasjunk plugin (#1489285)
- Fix lack of Reply-To address in header of forwarded message body (#1489298)
- Fix bugs when invoking contact creation form when read-only addressbook is
  selected (#1489296)
- Fix identity selection on reply (#1489291)
- Fix so additional headers are added to all messages sent (#1489284)
- Fix display issue after moving folder in Folder Manager (#1489293)
- Fix handling of non-default date formats (#1489294)
- Fix unquoted path in PREG expression on Windows (#1489290)
- Fix Junk folder icon alignment when it's nested in inbox folder (#1489292)
- Fix wrong close tag in /template/mail.html (#1489295)