Allow the right side of the ampstart-navbar to accept a link as well as calltracking (#494)
Allow the right side of the ampstart-navbar to accept a link as well as calltracking (#494)

* feat(navbar): Allow the right side of the navbar to accept a link as well as call tracking.

* Added margin left around each element in fixed items

* feat(navbar): Use mr2 on links on fixed items, remove mr2 from ampstart-headerbar-fixed

ampproject/ampstart,ampproject/ampstart,camelburrito/ampstart,afilbert/ampstart,afilbert/ampstart,camelburrito/ampstart,ampproject/ampstart