A small script to update all module versions
Bump all versions to 4.0.0 to get out from under 3.7 vs. 3.00700x silliness

From now on, module version numbers should be x.y.z and ideally match
the release (tarball) version.

The release version matching the module versions ensures that new
releases will not be invisible to CPAN clients, which only look at
module versions.
Extract release version from the primary module

One less place to update.