Version 1.0.1

This is a bugfix release that fixes a bug in the LDAP implementation, specifically in the search_ldap function. Previously, when the LDAP server omitted attributes in its response although they were requested, this would raise an LDAPError. Now this functions returns empty strings for each requested attribute that is not in the LDAP response.

This release includes a data migration that repopulates Uvt users without the "first_name" attribute (which was the cause of this bug in the first place).