Add dead blog tone
Clear up Nginx readme
Add CircuitBreakerSwitch to all
Merge remote-tracking branch 'origin/master'
Create deadblog tone
Merge master into 'dead-blog'
Merge pull request #6180 from guardian/dead-blog

DeadBlog Tone
Extend breaking news switch by 2 months
Merge pull request #6181 from guardian/breaking-news-switch

Extend breaking news switch
Merge remote-tracking branch 'origin/master'
Extend CircuitBreakerSwitch to end of November
Merge pull request #6175 from guardian/nginx-readme

Clear up Nginx readme
Merge branch 'master' into live-blog-caching

Conflicts:
	common/app/conf/switches.scala