* camel-provider.h: Add a domain field to CamelProvider, to say
what kind of data it provides.
* providers/imap/camel-imap-provider.c:
* providers/mbox/camel-mbox-provider.c:
* providers/pop3/camel-pop3-provider.c:
* providers/sendmail/camel-sendmail-provider.c:
* providers/smtp/camel-smtp-provider.c: Set domain to "mail".
* providers/nntp/camel-nntp-provider.c: Set domain to "news".
* providers/vee/camel-vee-provider.c: Set domain to "vfolder". (So
it doesn't end up being listed as a potential mail source in the
mail config wizard.)
svn path=/trunk/; revision=3254
28a05ec767