t/xs.t to skip some if futile.
t/xs.t to test PERL="perl -w" exercising space-quoting.
Enable PERL=>"$^X -Iinc" to work again.
Merge pull request #150 from mohawk2/perlmacrospace

Enable PERL=>"$^X -Iinc" to work again.
Simulate Module::Install $(PERL) changing.
Invert logic to avoid "unless/else".
Handle Module::Install $(PERL) Makefile editing.
Merge pull request #151 from mohawk2/perlmacro-modinstall

Handle Module::Install $(PERL) Makefile editing.
Release engineering for v6.99_10
Add bundled doppelgaenger of version/regex/vpp

When loaded, this either loads version.pm itself (any version)
or loads the doppelgaenger and mocks up version.pm.
remove old version bundle and related code
Rely on bundled EU::MM::version to bootstrap version

If version.pm is available, it will be loaded, otherwise the pure-perl
compatibility module will be loaded and make the version:: namespace
available for EU::MM, CPAN::Meta and CPAN::Meta::Requirements.
have bundled modules use EU::MM::version fallback
emulate version::is_qv for Perl 5.10.0
only use version->new, not version->parse
convert version->declare to version->new