Merge branch 'release-4.0.1' into develop
Make sure the IdM params are fetched only after DOM ready.
Add flexslider class to carousel example to remove FOUC.
Add missing HTML tag start, even though it does not appear as invalid
Update flexslider jQuery plugin to latest upstream - 2.2
UNL Events is now secure enabled.
Support multiple sliders (carousels) on a page.
www1 joins the list of secure enabled hosts.

Welcome nav switcher on SSL
Expose API to fetch remote site navigation.
Ensure that the WDN navigation is displayed on the example page.
Retionalize used z-indexes
Update all NPM dependencies

`npm --prefix=build -g update`
Add a plugin for enhancing imagery within bands of content

* Add a wdn-flipbook class for creating flipbooks of figures
* Add wdn-locked & wdn-scroll classes for side-by-side content display
Add examples for enhanced band imagery
Add newlines to eof
Whitespace consistency
Add a few omitted closing and opening tags for HTML cleanliness
Whitespace, alignment for readability
Add local variable for
Combine sequential CSS calls