Position search box above editions

At request of @twobobswerver
Open all search results in a new window

As requested by @twobobswerver
Use the Guardian serif font
Added ARIA search role to search box
Remove bean dependency from search module
Only apply search box style when the switch is on.

The min-height property causes excess space when SearchSwitch is on. I moved it to apply to it's first child, generated by the search JS.
Square button styling. Edition toggler below search results.
Re-apply taget='_self' to results
Revert: Use the Guardian serif font
Force serif font
Force serif font
Merge pull request #585 from guardian/search-chrome

Search chrome