use bulleted list for SEE ALSO
try to switch to [Test::Kwalitee::Extra]; fail, but document what happened
clarify why we have a custom clean-namespaces test
warnings { code } -- does for Test::Warn what Test::Fatal did for Test::Exception
whitespace in import list
also add warning() (thanks leont for the suggestion)
empty commit to give leont credit for warning() -- closes PR#2
add contributors data to meta and pod