[DFDL-WG] Summer pause to DFDL Workgroup Calls

I am cancelling the DFDL WG Calls for July and August since many people are away during those times. Mike Beckerle Apache Daffodil PMC | daffodil.apache.org OGF DFDL Workgroup Co-Chair | www.ogf.org/ogf/doku.php/standards/dfdl/dfdl Owl Cyber Defense | www.owlcyberdefense.com