In Evolution 2.x, the local mail store used mbox format. Camel will not
recognize the old-style "mbox:///.../local" folder URIs, since the local
mail store is now Maildir format. Test for this and work around it.
This should re-fix bug 638307 which was a nuisance error about failing
to append to a "mbox:///.../local#Sent" folder after sending a message.
camel_service_get_settings() is now camel_service_ref_settings()
and it returns a new CamelSettings reference which the caller must
release with g_object_unref().
These functions now return new references:
camel_session_add_service()
camel_session_list_services()
These functions have been renamed and also return new references:
camel_session_get_service() -> camel_session_ref_service()
camel_session_get_service_by_url() -> camel_session_ref_service_by_url()
These libraries are bound for E-D-S so they live at the lowest layer of
Evolution for now -- even libeutil can link to them (but please don't).
This is the first step toward moving mail handing to a D-Bus service.
