Original commit message from CVS:
Manual now gets installed correctly by make install. Problems:
clean / uninstall don't work.
make dist not tested.
pdf manual doesn't have images.
Original commit message from CVS:
Added building of the manual to the build system. Currently in a
rudimentary state - will not gracefully give up if tools not available,
will not uninstall / clean, and may not install / make dist properly.
Documentation does not have dependencies on images, so won't rebuild if
they're altered either.
