Multilevel offcanvas menu
Added .project to gitignore
Restored version to forked 5.2.1
Changed \t to 2 space chars
shorted names for Multilevel Offcanvas
Add setting for last-child float direction
Merge tag 'v5.3.1' into multilevel-offcanvas
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This reverts commit 915fb21fadeba63222dbb45eac6a415e96f17801.

Conflicts:
	doc/includes/off_canvas/examples_offcanvas_multiple_level_markup.html
	doc/includes/off_canvas/examples_offcanvas_multiple_level_rendered.html
	doc/pages/components/offcanvas.html
	js/foundation/foundation.offcanvas.js
	scss/foundation/components/_offcanvas.scss

Conflicts:
	js/foundation/foundation.offcanvas.js
add nested list for grays
Fix subheader demo render issue
Add `input[type="color"]` to the basic form elements
Trigger all known resize events on window load
list for gray values
Fixes Issue #3781

Joyride modal overlay appears on window resize

Adds new settings variable 'riding', which is set to true on
start, false on end, and checked during window resize to determine
whether to show the modal overlay or not.
Merged multilevel-offcanvas with v5.3.1 changes
Merge tag 'v5.3.3' into multilevel-offcanvas
Resolves conflict in doc/pages/components/offcanvas.html
RTL support added. Arrow icons correctly positioned.
Fixed version v5.3.1 to v5.3.3
Fixed explanation text offcanvas-multilevel
Fixed Chrome bug in @mixin icon-double-arrows