user_ldap

LDAP rewrite, use unique LDAP user and group identifiers on LDAP side as well as fancy (unqiue as far as users a know from LDAP) names on the ownCloud side. It's done via mapping of owncloud names and LDAP identifiers.

some performance enhancements: faster searching for users and groups in their specific subtrees. Reading instead of searching were possible.

thanks for the feedback of Kevin van Kuik