Remove a ton of 'return ()', and a few other minor readability tweaks.
Silence a noisy test by passing an expected data type.
Merge pull request #120 from smtpd/test_warning

Silence a noisy test by passing an expected data type.
Merge pull request #119 from flimzy/return_cleanups

Remove a ton of 'return ()', and a few other minor readability tweaks.
Address: remove useless undef

and added tests to validate that they really are useless
more cleanups
stunnel: cleanups
Merge pull request #122 from msimerson/return_cleanups

Return cleanups
convert docs/* from POD to Markdown

1. easier to update
2. it's readable on github
converted UPGRADING.pod
updated MANIFEST
Merge pull request #117 from msimerson/docs-to-md

docs/* from POD -> Markdown