Fixed design issues and added browser requirements
Merge pull request #64 from Financial-Times/design

Fixed design issues and added browser requirements
Scaling of back to ft logo in ie8
Merge pull request #69 from Financial-Times/ie8-back-to-ft

Scaling of back to ft logo in ie8
Made hoverable semver wider
Merge pull request #70 from Financial-Times/hoverable-semver

Made hoverable semver wider
Fixed merge conflicts