Log Message:
Update from version 2.13 to version 2.18.

Pkgsrc changes:
- adjust dependencies
- adjust PERL5_MODULE_TYPE

Upstream changes:
2.18 (2010-06-12)

Continue to refine t/lexicals.t response to Perl commit
"e02c0f79a8059eaf4981f798cc21d7dc3c8b916e shift; optimization". The
change happened after 5.13.0 and is released in 5.13.1.

2.17 (2010-06-11)

Declare ExtUtils::CBuilder as a build_requries dependency

2.16 (2010-06-11)

Manually add VERSION to Data::Dump::Streamer::Deparser to make CPAN
indexer happy.

2.15 (2010-06-11)

Perl commit "538f5756c002f0583190831238bbf6bd54855cdc shift;
optimization" changed B::Deparse

Switch from ExtUtils::MakeMaker to Module::Build for
configure_requires support

2.14 (2010-06-08)

Our Makefile.PL must abort if we're going to need to build B::Utils
but we don't have ExtUtils::Depends because it doesn't work to let the
build chain do this dependency resolution. Perhaps there is a version
that this all "just works" in?

t/dump.t required some styling state changes but was skipping them
when some modules weren't installed.