Remove a duplicate copy of the Makefile data.
Bring over a basic makefile framework.

It's good enough to do:

env UINET_DESTDIR=/home/adrian/local gmake clean config all install
This isn't used anymore!
Merge pull request #22 from erikarn/adrian_makefile_framework_2

Makefile improvements from Adrian.
Merge branch 'master' into passive_receive_adrian
Remove this - it's no longer true.