Merge branch 'master' into fastft-usecases

* master:
  Added oColorsFor to readme
  Removed test line
  Fixed if statements
  Add new mixin to write entire colour properties
  import mixins into main.
  Moved links to templates
  Hardcoded grid and techdocs css link
  Updated readme
  Moved to mixins and made variable default
  Updated demos and addedsetusecase mixin
  Added public version of oColorsGetPaletteColor, keeping underscore-prefixed version for backwards compatibility. Addresses #55.
  typo in fastft usecases
  typo
  Made really deprecated warnings a bit louder
  Added ability to add a DISABLED flag to use case + role combinations
  rewriting functions using sass 3.3 maps in order to handle deprecation warnings more intelligently

Conflicts:
	src/scss/_use-cases.scss