initial palette refactor
news n feature colour palette refactor
Merge branch 'master' of github.com:guardian/frontend into color-refactor

* 'master' of github.com:guardian/frontend: (41 commits)
  Player controls behave the same in embedded and fullscreen mode
  Set the Content-Length when putting GZipped objects
  Fix code style
  Remove semicolon
  Ajust line-height of Soulmates slogan
  Upgrade vast plugin
  Tidy up media module
  Fix position of Soulmates slogan on mobile
  Turn off enforce validity in Google Play Auth for Facia Tool
  Never show controls at the start of a video
  Add back overflow: hidden on root elements
  Cleaner code apparently
  Not every page is a content page.
  Small fixes
  js method name
  adding scrollable css and js
  Remove unnecessary dependencies.
  removing v2 selectors
  Unified width for burger icon.
  Validation.
  ...

Conflicts:
	static/src/stylesheets/module/commercial/_facia-container.scss
merge errors
analysis and comment tone colours
live and media tone colours
podcast and review tone colours
editorial crossword and football colours
status and social colours
whitespace
palette whitespace and names
colour correction
colour mixin comment
status colours
Merge pull request #7043 from guardian/color-refactor

Mega colour refactor
Fix all of Matt Osborns merge conflicts