Fix url to travis
Fix url to travis

Former-commit-id: e9bfe9684065bd9157f4d362a154f975b8c55ceb
alekseysidorov/exonum,exonum/exonum,exonum/exonum,alekseysidorov/exonum,alekseysidorov/exonum,alekseysidorov/exonum,exonum/exonum,exonum/exonum