Consider filename extension to detect image attachments of type application/octet-stream
Adapt stylesheets to recent changes in jQuery UI 1.9
Create Roundcube Framework initialization script (bootstrap)
Framework files moved to lib/Roundcube
Rename rcube_bc.inc to bc.php for consistency
Fix cache (in)validation after setting \Deleted flag
Small style improvements
Add lost rcube_vcard.php file
Fix hidden flag and default_addressbook settings handling
Fix absolute positioning in HTML messages (#1488819)
Fix redundant colon after last address in print mode
Merge branch 'master' of github.com:roundcube/roundcubemail

Conflicts:
	CHANGELOG
Merge branch 'master' of github.com:roundcube/roundcubemail
Moved rcube_* classes to <plugin>/lib/Roundcube for compat. with Roundcube Framework autoloader
Define more (uniquely prefixed) constants for Roundcube directories in order to enhance the interoperability of the Roundcube framework
Use new RCUBE_PLUGINS_DIR constant
Separate framework and application constants
Fix installer to work with the new framework architecture
Merge branch 'master' of github.com:roundcube/roundcubemail
Unify path schema in global constants: paths always end with a /. Keep RCMAIL_CONFIG_DIR for backwards compatibility