Migrate d3js to v4 and correct d3js visualisations i.e. bug 3.20. Breadcrumb navigation for the language treemap has been improved
fixtures:
repositories:
"stdlib": "https://github.com/puppetlabs/puppetlabs-stdlib"
"staging": "https://github.com/nanliu/puppet-staging"
symlinks:
"mysql": "#{source_dir}"