Update url requirement from 1.7.2 to 2.0.0 (#1391)
Update url requirement from 1.7.2 to 2.0.0 (#1391)


alekseysidorov/exonum,exonum/exonum,alekseysidorov/exonum,alekseysidorov/exonum,alekseysidorov/exonum,exonum/exonum,exonum/exonum,exonum/exonum