Fix attachment Content-Length for in-memory files (#1488844)
Unify top-border on message-part and image-attachment elements
enriched.inc -> rcube_enriched
Add host config option to http_authentication plugin.

This is useful if the users are free to choose arbitrary mail hosts (or
from a list), but have one host they usually want to log into.

Otherwise the username/password must always be typed in twice.
- Fix XSS vulnerability in vbscript: and data:text links handling (#1488850)
Add workaround for IE<=8 bug where Content-Disposition:inline was ignored (#1488844)
Fix typo, the issue unintentionally removes password from the session
Replace topline container with topline-left, topline-center, topline-right containers (#1488846)
Merge branch 'master' of github.com:roundcube/roundcubemail
Fix PHP warning when replied message contains exactly one Delivered-To header
Plugin API: add 'check_recent' hook with possibility to control folders list used on check-recent action
Some more rcmail -> rcube cleanup
Fix big memory consumption of DB layer (#1488856)
Fix typo in identity data parser ('ident' item wasn't set correctly)
Better explanation of the new mime_types config option
Added README file for the Roundcube framework
Add github syntax highlighting to php code snippet
Add default path for mime.types file; map jpg => image/jpeg in fallback list
Merge branch 'master' of github.com:roundcube/roundcubemail
Add support for IMAP BINARY (RFC3516)