2009-10-27 [colin] 3.7.3cvs10

2009-10-27 [colin]	3.7.3cvs10

	* src/folder.c
		Fix bug 2028, 'Attempts to connect to all accounts on exit'
		Don't try to check whether the folder is up-to-date if
		the folder class doesn't implement set_mtime, as we don't
		care in this case. This code exists since a long time, but
		the bug was triggered by more scanning of queue folders
		since recently (when we added \Deleted handling).