* Add variation switcher in footer for variation page
* Add productId to make sure template is updated correctly
* Don't show bar when less then 2 variations.
* Add class for when page is scrolled to bottom
* Add changelogs
* Add tracks
* Fix lint error
* Fix css lint issues
* Adding base styles for collapsed nav menu.
* Handling varying behaviour on mobile-sized screens, with the menu overlaying content instead of shrinking the content area.
* Folding the menu by default on screen sizes less than 960px, and if that condition is met after an orientation change
* Refactoring logic from Header/index.js to flag if user has scrolled to apply shadow to folded navigation as well.
* Refactoring styles in navigation feature to allow them to be loaded properly with webpack (with imports/etc).