* userdir_ldap.py: read auth password from environment if set.
* Introduce BaseBaseDN which is the real base dn. BaseDN itself
has historically been used as the root of the user tree.
* userdir_ldap.py: read auth password from environment if set.
* Introduce BaseBaseDN which is the real base dn. BaseDN itself
has historically been used as the root of the user tree.