This is a the Dist::Zilla manpage plugin that subclasses
Dist::Zilla::Plugin::RewriteVersion, to allow plugin bundles to transition
from Dist::Zilla::Plugin::PkgVersion or Dist::Zilla::Plugin::OurPkgVersion
to Dist::Zilla::Plugin::RewriteVersion and
Dist::Zilla::Plugin::BumpVersionAfterRelease without having to manually
edit the _dist.ini_ or any _.pm_ files.

Determining the distribution version
As with Dist::Zilla::Plugin::RewriteVersion, the version can be
overridden with the 'V' environment variable, or provided through some
other means by setting 'skip_version_provider = 1'. Then, the main
module (see the Dist::Zilla/main module manpage) in the distribution is
checked for a '$VERSION' assignment. If one is not found, then the
plugin named by the 'fallback_version_provider' is instantiated (with
any extra configuration options provided) and called to determine the
version.

Munging the modules
When used in a distribution where the _.pm_ file(s) does not contain a
'$VERSION' declaration, this plugin will add one. If one is already
present, it leaves it alone, acting just as
Dist::Zilla::Plugin::RewriteVersion would.