DAR-264: inject responsive styles into oasis layout if enabled.
DAR-264: disable wikiagrid on article pages with the responsive layout enabled.
DAR-264: add support for a fluid width main content area.
DAR-264: get rid of page background color, apply it to the content container instead.
DAR-264: take advantage of the Sass widthType parameter and conform the flag to the naming convention of those variables.
DAR-264: make the article space look less cramped.