php-driver: add license header to Concourse.php
php-driver: add license header to Concourse.php

remiemalik/concourse,cinchapi/concourse,cinchapi/concourse,JerJohn15/concourse,hcuffy/concourse,dubex/concourse,dubex/concourse,vrnithinkumar/concourse,hcuffy/concourse,remiemalik/concourse,kylycht/concourse,JerJohn15/concourse,vrnithinkumar/concourse,dubex/concourse,dubex/concourse,vrnithinkumar/concourse,JerJohn15/concourse,cinchapi/concourse,JerJohn15/concourse,dubex/concourse,kylycht/concourse,JerJohn15/concourse,remiemalik/concourse,cinchapi/concourse,vrnithinkumar/concourse,kylycht/concourse,remiemalik/concourse,remiemalik/concourse,remiemalik/concourse,kylycht/concourse,cinchapi/concourse,hcuffy/concourse,dubex/concourse,hcuffy/concourse,kylycht/concourse,vrnithinkumar/concourse,hcuffy/concourse,vrnithinkumar/concourse,JerJohn15/concourse,kylycht/concourse,hcuffy/concourse,cinchapi/concourse