first pass at adding disabled class to links, only supports anchor clicks
switch to listening for events to work with snapscroll
move nav toggle event bindings to the appropriate branch, add attachEvent listeners
on scroll toggle nav
ignore nav toggle on rewind
signal jenkins preview build
disabled nav example
on scroll events use the position, on click/snap events use the active slide definition
cleanup and dependency on event.overthrow.active directly and not just event
move nav disable to a plugin, add events to support
cleanup of old variables, initial prev disable