extra-fresh Autoconf and Automake are needed

[Alexey M. <al...@hs...>]

Because of a need to introduce the Autotest support, the cvs-nserver
development now requires the current Autoconf from CVS and the
Automake 1.5.

This could be a little pain, but it's the way to go if we want it all
to be tested.

--alexm