BEMify ad slots
Set up sticky init
Added basic development principles
Merge branch 'master' of github.com:guardian/frontend into line-in-the-sand
Expired content uses new article design
Refactor dateline
Interactives use the new article layout
Refactor and BEMify headline lists
Whitespace
Top stories static page uses new article layout
Discussion page uses the new article layout
Simple advert format test bed

This gives us a basic system to deliver simple HTML adverts, Eg.

 http://localhost:9000/commercial/jobs
 http://localhost:9000/commercial/soulmates
 http://localhost:9000/commercial/...

As each one evoles in to something more complex we can split in to a seperate controller, as with travel offers.
One template per advert
Make the templates distinct from each other
Test database update
Merge branch 'master' of github.com:guardian/frontend into fix-article-head-regressions

Conflicts:
	data/database/477352bacfa172a7316717d17f1c653f8944383a
	data/database/6498c58a72a8a0d3e19c8fc098badc228c447e10
Simplify dateline code
All Sections static page uses the new article layout
Tests database
facia specific head css