set proper PACKAGE information for yams 0.39 Yams 0.39 adds an unobstrusive API to get the package, or cube, defining a part of the schema (entity type, relation type/def). As CubicWeb overrides part of the schema reading process, we have to handle this information on our side so it will be properly set.

What's new in CubicWeb 4.0?
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Deprecated Code Drops
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* The ldapuser source has been dropped. ldapfeed is the only official source
  remaining for ldap.