Fix test failing with 5.6.2 when some core modules have been upgraded.
Remove old copy of B::Utils.

Commit 9f8b53f5f0800b7cf668ed9c402269f50204e246 renamed it to avoid clashes
with CPAN release, but forgot to remove it from repository.
Updated MANIFEST.SKIP and .gitignore.
Release version 0.33.