added CAMEL_PROVIDER_CONF_HIDDEN to conf item type enum. This is used by
2004-05-24 Sivaiah Nallagatla <snallagatla@novell.com>
* camel-provider.h : added CAMEL_PROVIDER_CONF_HIDDEN to
conf item type enum. This is used by groupwise provider
* providers/groupwise/camel-groupwise-provider.c : Added CAMEL_PROVIDER_CONF_HIDDEN
to groupwise_conf_entries to pass the auth-domain value
* providers/imap/camel-imap-store.c (imap_auth_loop) : read the auth-domain
property from imap url and pass it camel sesstion apis