Updated regions and added header panel.

• Added Header Panel
• Added a new 'above' slot to Hero
• Added a Menu
• Added a new 'tertiary' style to button

requested review from @kepol

assigned to @alan.cole

added 5 commits

• 09d08416...9ae744e1 - 4 commits from branch 1.0.x
• cd3cab9b - Merge branch '1.0.x' into feature/header-panel

Compare with previous version

added 4 commits

• cd3cab9b...a3d7e193 - 3 commits from branch 1.0.x
• 14d9457c - Merge branch '1.0.x' into feature/header-panel

Compare with previous version

added 1 commit

• f54125a8 - Remove Platform, Develop and Download menu links.

Compare with previous version