Import v4.0b3
Import v4.0.0
Merge tag 'v4.0.0'

v4.0.0

Conflicts:
	configure
	pkgIndex.tcl.in

Retained the master version of pkgIndex.tcl.in that
includes a ".." reference.

Configure was regenerated with Starlink autoconf v2.59
Whitespace sync
Do not need cvsignore any longer