GH-4621 added rootElement for Reveal to be configured.
added toolbar and switch prototypes
Revert "added toolbar and switch prototypes"

This reverts commit 1268cc357a3eeddf34f2533c708664af09776b5f.
added toolbar and new switches
Retools the new switches

Removes the span element, adds in radio and checkbox options, adds all
mixins and semantic code elements.
Updates switch docs

Updates the switch docs to include examples, mixing, settings and
variables.
Fixes for Switch documentation

Makes the initial example more clear and removes mention of the
negative color which was removed
Add JS support for vertical sliders
Add vertical sliders to docs
Add disabled state to range sliders
Document value output for range sliders
Document disabled range sliders
Document vertical sliders
Add value displays to the range slider examples in the docs
Merge branch 'master' of github.com:zurb/foundation into 5.3-wip
deleted switch.scss
Merge branch 'master' of github.com:zurb/foundation into 5.3-wip
Fix CSS transition fallback for alerts
Fix clearing swipe direction
Prevent launching reveal modals when trigger element has disabled attribute