Log Message:
Added back elmo-shimbun and added a dependency on www/emacs-w3m.
The elmo-shimbun files are conditionally installed based on whether
the emacs-w3m package is found on the system.

XXX The dependency on emacs-w3m should really be turned into an
option and have the installation of the elmo-shimbun files depend
on it; however, this change prevents nasty surprises for those that
do have it (i.e. people using editors/emacs-packages).