ZP-448 #comment added check to see if IMAP_EXCLUDE_FOLDERS have a value #time 15m

git-svn-id: http://svn.berlios.de/svnroot/repos/z-push/trunk@1726 b7dd7b3b-3a3c-0410-9da9-bee62a6cc5b5
ZP-362 #comment expose GetFolderType() through DeviceManager, when loading states in heartbeat, ignore OUTBOX folders #time 1h

git-svn-id: http://svn.berlios.de/svnroot/repos/z-push/trunk@1727 b7dd7b3b-3a3c-0410-9da9-bee62a6cc5b5