Log message:
application.buildlink.mk -> application.mk

Log message:
Strip the ".buildlink" from the names of the python application and
extension Makefile fragments, because they really don't have anything to
do with the buildlink[12] frameworks.  Change all the Makefiles that use
application.buildlink.mk and extension.buildlink.mk to use application.mk
and extension.mk instead.

Log message:
unused

Log message:
rename product.buildlink.mk to product.mk since this doesn't use
"buildlink" logics
also define a default prefix - fixes PR pkg/18191

Log message:
common definitions for add-on products

Log message:
First cut on an actual Zope pkg, which requires a thread enabled Python,
for which we only have a pth version. Needs Testing.
Also needs some work for installation/startup scripts.