Update composer to support PHP 7 (#375)
Update composer to support PHP 7 (#375)

* Update composer to support PHP 7

* Empty commit to trigger CI

garrettjonesgoogle/api-client-staging,eoogbe/api-client-staging,shinfan/api-client-staging,shinfan/api-client-staging,garrettjonesgoogle/api-client-staging,eoogbe/api-client-staging,shinfan/api-client-staging,pongad/api-client-staging,googleapis/api-client-staging,shinfan/api-client-staging,garrettjonesgoogle/api-client-staging,garrettjonesgoogle/api-client-staging,eoogbe/api-client-staging,pongad/api-client-staging,googleapis/api-client-staging,googleapis/api-client-staging,eoogbe/api-client-staging,pongad/api-client-staging,shinfan/api-client-staging,garrettjonesgoogle/api-client-staging,eoogbe/api-client-staging,googleapis/api-client-staging,eoogbe/api-client-staging,googleapis/api-client-staging,shinfan/api-client-staging,pongad/api-client-staging,pongad/api-client-staging