Drop number prefix from release *.t files

Since they have a subdir now...
Fiannly wrangled Test::Kwalitee to be runtime-managable - refs #64

See in-code comments
pod coverage release test now skipped - refs #64
Re-enabled --author and --release switches in travis cfg - refs #64

Release tests will now be skipped on a case-by-case basis as the
complete release tests are still being built (e.g. pod coverage)