* assistant.el (assistant-render-text): trying to add a :set

* assistant.el (assistant-render-text): trying to add a :set
widget, more to come...

* spam.el (spam-group-spam-contents-p): handle empty groupname
strings
(spam-report-articles-resend)
(spam-report-resend-register-routine): allow spam-report-resend-to
to be a group parameter or a global value
(tiny change).  From Daniel Pittman <daniel@rimspace.net>.
(spam-register-routine): do registration iff any articles warrant
it.
(spam-summary-prepare-exit): changed log message for nil group
destinations