removed unneeded generated css
improved heading type kerning
improved layout of glossary nav
added new style navigation
regenerated css
grid extends are now includes

Fixes unexpected behaviour when inside a media query
added new mixins

Now has mixins for equal column grids and hopefully simpler syntax
lesson: keep media queries out of your mixins
added layout code for homepage
fixed overflow bug with some layouts
removed superfluous hr
addition of new columns mixin
added multicolumn layout

Applies to sidebar on mobile and tabley only
regnerated CSS