common makery into Makefile.common, add CONFLICTS for each package
referring to the others, as for now the manpages will conflict.
TODO: Use ALTERNATIVES system? How to handle manpages?
Many bug fixes and some feature/documentation enhancements. The
web site goes into this in much detail; also, see CHANGES.txt
and RELEASE.txt in the source distribution.
Also, see the change to patch-aa which ensures we use ${PKGVERSION_NOREV}
to generate the version for the installation where appropriate.
