Require ruby(release) on EL7/Fedora

Fixes #1
Automatic commit of package [rubygem-highline] minor release [1.6.20-2.1].
Tidy changelog
Automatic commit of package [rubygem-librarian] minor release [0.1.2-2].
Automatic commit of package [rubygem-librarian-puppet] minor release [1.0.9-2].
Automatic commit of package [rubygem-thor] minor release [0.15.4-9].