Use regexp to check if a version is 0.0.
Major rewrite of requisite and conflicts transliteration.

Rewrote META file handling to work better with "new" META spec. Prefers
to read requisites from META file instead of from CPANPLUS.

Removes special logic for core modules. The perl package's builtin provides
array is better than it once was. This adds more dependencies but hopefully
it won't be too confusing.

Rewrote dependency and conflict transliteration to allow for conflict
specification. The hash datatype was no longer a proper metaphor for
conflict specification. Dependencies and conflicts were rewritten as
specialized versions of specifications over versions (verspecs).
Rewrote examples/cpanpkgbuild.pl.

Instead of writing to a file we print the PKGBUILD to stdout.
Removed strict and warnings because the script is so short.
Rewrote the style to match my latest.