Add (probably unnecessary) &optional to prefix args

lisp/gnorb-org.el: (gnorb-org-handle-mail, gnorb-org-email-subtree)
		   Because they told me to.
Refactor extraction of mails from records

lisp/gnorb-org.el: (gnorb-org-extract-mail-stuff) Used to pull the mail
		   addresses from BBDB records itself. Now passes the
		   records out, and lets the caller do the extraction.
		   This is so bbdb-posting-styles can do their thing in
		   `gnorb-org-handle-mail' and
		   `gnorb-org-email-subtree', which are looking more and
		   more like they need to be merged.
Use BBDB posting styles in mail composition

lisp/gnorb-org.el: (gnorb-org-handle-mail, gnorb-org-email-subtree)
		   Change both functions to make use of
		   gnorb-bbdb-posting-styles. When will these
		   functions get merged!?
Minor README edits

README.org: Not worth mentioning
First highly ugly version of gnorb-gnus-view

lisp/gnorb-gnus.el: (gnorb-gnus-view) I hesitate to call this a
		    function. Mostly I'm getting it committed so I can
		    rebase something else.
Error in following link should be re-raised

lisp/gnorb-org.el: (gnorb-org-setup-message) We're supposed to be
		   replying to this message link, so if something
		   fails in doing that, the error should be propagated.
		   Just try to clean up the buffers first.
Merge and simplify handle-mail and email-subtree

lisp/gnorb-org.el: (gnorb-org-handle-mail, gnorb-org-email-subtree)
		   Finally have `gnorb-org-emial-subtree' simply call
		   `gnorb-org-handle-mail' once it's done. Along the way
		   simplified how BBDB contacts are handled in the link
		   collection process, and fixed a bug from 9ecb0e2.

lisp/gnorb-utils.el: (gnorb-bbdb-link-to-mail) Deleted function, no
		     longer necessary.
 BBDB message link list needs closing newline

lisp/gnorb-bbdb.el: (gnorb-bbdb-display-messages) End with a newline.
		    Actually, I'm not totally sure this is correct, it
		    only appears that way since this is the last field
		    on all my records.
Speedier display of messages in nnir search

lisp/nngnorb.el: (nnir-run-gnorb) Was using gnus-activate-group for each
		 link, to ensure it existed. Dog slow, and unnecessary:
		 if gnus-request-head errors, that's all we need to know
		 to drop the link
Improvements to nnir-run-gnorb

lisp/nngnorb.el: (nnir-run-gnorb) Instead of accumulating strings, just
		 use append to buffer. Also fixes semi-bug of
		 accumulating multiple redundant copies of subtrees'
		 children text.
Also check for nnir when storing BBDB message links

lisp/gnorb-bbdb.el (gnorb-bbdb-store-message-link) Always need to find
		   the "real" backend group. Previously only checked for
		   nnvirtual, this adds nnir to the check as well.