conpaas test: add missing dependency in Travis for cps-tools.
conpaas test: add missing dependency in Travis for cps-tools.

ConPaaS-team/conpaas,ConPaaS-team/conpaas,ConPaaS-team/conpaas,ConPaaS-team/conpaas,ConPaaS-team/conpaas,ConPaaS-team/conpaas,ConPaaS-team/conpaas