k-int to maintain Zthes

Maintenance of the Zthes specification has been transferred to Knowledge Integration (http://zthes.z3950.org).

Members of the Knowledge Integration team have been working extensively in the terminology domain and the existing custodian (Mike Taylor of Index Data) felt that k-int were ideally suited to take the specification forward. The Zthes specification combines a simple, extensible data model, bindings in different formats and a defined query attribute set for SRU and Z39.50. We believe that it has a role to play alongside other interchange formats for controlled vocabularies (SKOS, vdex etc.) as all have strengths and weaknesses. With the support of the Zthes community it is our intention to maintain the inherent simplicity of Zthes whilst developing the specification to keep it up to date with current trends and directions in the terminology domain.