** Part of fix for bug #313225

** Part of fix for bug #313225

2008-09-24  Milan Crha  <mcrha@redhat.com>

	** Part of fix for bug #313225

	* camel/providers/groupwise/camel-groupwise-folder.c: (gw_update_cache), (gw_update_summary):
	Set the user flag '$has_cal' in the message info when the message
	is type of the appointment, task or note.

	* camel/providers/imap/camel-imap-folder.c: (CAMEL_MESSAGE_INFO_HEADERS):
	Transfer always 'CONTENT-CLASS' and 'X-CALENDAR-ATTACHMENT' headers.

	* camel/camel-folder-summary.c: (summary_build_content_info),
	(summary_build_content_info_message): Check whether message contains
	headers indicating a calendar attachment and if so, then set the user
	flag '$has_cal' in the message info.

svn path=/trunk/; revision=9598