set major version of shlibs to 0

WARNING: this will break existing dynamically linked binaries if they
exist. If you have any:
	. re-build world statically first if necessary
	. remove libraries from /lib and /usr/lib
	. then build world

This change:
	. avoids possible future dismay when interfacing other
	  systems' binaries; done until they are abi-compatible

Thanks to Antoine Leca for pointing this out.

lib/libutil/shlib_version

@@ -1,5 +1,2 @@
-#	$NetBSD: shlib_version,v 1.47 2009/05/13 02:50:32 pgoyette Exp $
-#	Remember to update distrib/sets/lists/base/shl.* when changing
-#
-major=7
-minor=17
+major=0
+minor=0