bump version to 2.1301
ensure that we do not offset line numbers when we add $VERSION to .pm files
ensure that we do not offset line numbers when we add $AUTHORITY to .pm files; also drop adding them everywhere except Moose.pm
this test cannot possibly pass until the [Authority] plugin runs
Skip or TODO memory leak tests under Devel::Cover
Reenable coveralls, and add badge to README.md

Only do coverage on 5.20, and partition the tests to stay under Travis'
50min timeout