use inc::latest for bundling

* rely on most recent releases of
  + Config::AutoConf
  + Data::Tumbler
  + Test::WriteVariants
add some extra author tests
reflect Changes for 0.400_010
after release bump version to 0.400_011

we'll need at least one more RC to stabelize after C::AC 0.307 is out
(travis will fail before and no user-release without green travis)