Set base font and colors.
Include styling for logo and tagline.
Add icon font (SS Pika).

SS Pika is a commercial font, therefor it is not contained in this repository.
Add styling for navigation and mega drop.
Refactoring/move megadrop styling to separate module.
Add charset definition to CSS in order to display icons correctly.
Change font path and font size for SS-Pika icons.
Add styling for the user menu.
Fix a minor indentation error in the map layout's HTML head.
Merge branch 'feature/header-styling-81' of github.com:sjockers/teikei into prototype
Header: Minor copy changes in the claim.