Silence pesky Devel::Cycle warning in leak test on 5.12+
Fix test failures with DBD::SQLite 1.38_02

This is what fb88ca2c was supposed to fix in the first place >.<
Make some travis confs smoke latest -dev offerings from CPAN

Based on the Test::Builder dev-testing introduced in 992a24f6
Devrel 0.08249_02