Lots of obsolete docs in pgaccess/lib/help

I notice that pgaccess' help files contain a lot of out-of-date quotes
from the primary documentation files. This is not good.

It looks like these files were once quasi-automatically generated from
the main files. Any chance of getting that process put into place
fully automatically? If not, frankly I'd vote for ripping the pgaccess
help facility out altogether: better people should have to go look at
the real docs than that they should have convenient instant access to
misinformation.

regards, tom lane