Fix Emacs 19 and 20 compatibility (I think). Fix race condition reading unread confs.
Detailed changes: > 2004-07-12 David Byers <firstname.lastname@example.org> > > * clienttypes.el (read-list-enter-read-info): When checking > whether to append texts to an existing read-list item, don't check > that conf-stats are eq. Just check that the conf-nos are the same. > > * prefetch.el (lyskom-prefetch-read-texts-handler): There was a > race condition here which could cause unread texts never to be > read properly. > > Provide hash-table-like functions in Emacs 19 and 20: > * reading.el (lyskom-mship-cache-create): Use > lyskom-make-hash-table instead of make-hash-table so compatibility > defun is used when needed. > (lyskom-mship-cache-get): Ditto for gethash. > (lyskom-mship-cache-put): Ditto for puthash. > (lyskom-mship-cache-del): Ditto for remhash. > > * compatibility.el (make-hash-table): Provide compatibility defun. > (gethash): Ditto. > (puthash): Ditto. > (remhash): Ditto. >