Still installing the old command names.

Still installing the old command names.

After seeing Jeff's guide, I changed my mind about the
big-rename transition plan.  Even if Porcelains are kept up to
date, those web documents that describes older world order would
live longer and people will stumble across them via google
searches.  And who knows how many mirrored copies there are.

The backward compatible symbolic links *will* be removed before
1.0.  But that will not happen in 0.99.8.

Signed-off-by: Junio C Hamano <junkio@cox.net>