6.0.0

Lots of code removed and optimizations along with the CSS that makes it 22kb leaner (hence the major release).
New lg2, lg3, xl2 and xl3 sizes and touches that make spacings more flexible as per design.
Font sizes have been reviewed by design and should be more consistent and with better line-heights.

New .font-disclaimer for those really small sizes.
.margin-bottom-$variant has been removed to favour the usage of the shorter .spacing-$variant.
New classes for text alignment responsively: text-sm-center will align text center only on mobile.
New classes for spacing responsively: spacing-tablet-xl will apply xl spacing only to tablet (and below).
Button paddings are now configurable via config.
Added common fade-in transition that we use almost everywhere. Can see more about it here.