CORE-5955: removed some obsolete endpoints
CORE-5955: removed the documentation for some obsolete endpoints and updated documentation for some modified endpoints
CORE-5955: consolidated the documentation for the app metadata endpoints
CORE-5832: removed some obsolete endpoints and their documentation
CORE-5955: re-inserted some endpoint index entries that were deleted by mistake
Merge branch 'rewrite' into wrap-irods
Merge branch 'wrap-irods' of https://github.com/iPlantCollaborativeOpenSource/DiscoveryEnvironmentBackend into wrap-irods