EXPORT-LDIF DOES NOT REMOVE ATTRIBUTES

Previously, Export-Ldif had special handling for dn, changetype, and objectclass
and would remove them from the PSObjects flowing through the pipeline after out
putting them. This was not idempotent behaviour, and has now been changed.
CLEAN-UP OF MANIFEST

Changed the manifest so the module type shows as manifest. Also
cleaned up the code a bit, changed version numbers, and a couple
of other tweaks