remove sharedir hack
fix .ackrc munging that was also adding .build/deadbeef entries after POSIX fix
more CONTRIBUTING tweaks
metadata required lower version of [Test::Compile] than code did
add missing develop prereq on Test::Warnings
xt_mode actually requires 2.036
mention dzil commands I use regularly
Dist-Zilla-PluginBundle-Author-ETHER-0.031

          - fix discrepancy for [Test::Compile] between prereq versions in
            metadata, and runtime required version (RT#89429)