tighten up these regexes
preamble and postamble support, as options or overridable builders
make use of whitespace in Makefile.PL a lot nicer
allow tests to pass with Dist::Zilla::Role::TestRunner < 5.014

e.g.
http://www.cpantesters.org/cpan/report/e3638453-6cb7-1014-9fea-5db7a694d5e7
Dist-Zilla-Plugin-MakeMaker-Awesome-0.25

    - add new 'preamble' and 'postamble' options, as well as overridable
      builder subs, for inserting code at the top and bottom of Makefile.PL