Add a new option on endpoint : 'full_description'
Content of this option can be in markdown

This allows the endpoint to be fully described, with titles,
bullet points and so on. You can even insert some code snippets.
Add a CSS rule so <li> tags are properly displayed in the
full_description block
Merge branch 'add_endpoint_full_description' of git://github.com/pjambet/Django-API-Playground into pjambet-add_endpoint_full_description

Conflicts:
	apiplayground/playground.py
Merge branch 'master' of github.com:Hipo/Django-API-Playground