Add complex utility classes for responsive stuff
Change a few color variables

Enhances visibility on screens with high brightness
Add stylish background-color transition to nav
Add .container-fluid, fix .row negative margin, add golden grid offset
Add docs for grid stuff
Rename old .col to .column in table styles
Add text alignment utility classes
Fix spacing between sidebar and anchor links in docs
Enhance markup for docs sidebar

The sidebar was inside a grid column. This was deducing useful space for the sidebar.