Introduce two new drafts
Remove wercker.json article and introduce wercker.yml
Update pypi deployment article with wercker yaml
Small code fix
Update faq to reflect wercker yaml
Update build.md to reflect yaml changes
Minor spell error fix
Change link from json to yaml
Update 7 articles with the yaml changes
Update getting started express and mocha
Update django postgres article to wercker yaml
Fix wercker yaml intro links
Drop wercker.json