Update Modulefile source to use https.
Allow tracking of metadata.json.
Expand Puppet versions tested in Travis-CI.
Switch to using metadata.json vs Modulefile.
Update to newer Gemfile, Rakefile, and spec_helper.
Deal with the people who wipe /etc/yum.repos.d .
Update README.md about software origins.
Remove EL5 support as upstream has dropped it.
Only support OS versions that upstream does.
Merge branch 'feature/drop-el5' into develop