Quick start guide example
General clean up
Support for code editor files & Gist JS editor for doc site

Code files can be created in the /content/code folder
Each code file can contain Javascript, CSS and or HTML blocks
When published, a Gist is created so that a code editor can be launched using this Gist for testing in the documentation site
A Gist is hashed so that Gists are not created unnecessarily
Store code in our custom Ably JSBin
Move vendored assets into a vendor folder
Always show language in code blocks + improve JS docs
Pop up JSBIN code editor