Now showing top-stories and search at desktop breakpoint
New navigation styling
Fixed jshitn errors
Removed unesscary layout call
Removed event listener hack
Remove dogpile cache.

It was useless and I suspect it caused some stale issues.
Added simple test for hasCrossedBreakPoint
Merge pull request #646 from guardian/clever-nav

New design changes for navigation
Merge pull request #648 from guardian/dogpile

Remove dogpile cache.
Merge branch 'master' of github.com:guardian/frontend into witness