CORE-5647, CORE-5648: Added filesystem UUID endpoints.
Added docs for the uuid endpoints.
Fixed the duplicate entry bug in the left nav panel.
Added the UUIDs to the return values for the folder listings and paged folder listing.
Modified the directory and page-directory endpoints to add the UUID field.
Merge branch 'dev' into metadata

Conflicts:
	services/Donkey/src/donkey/routes/filesystem.clj