Fixed .travis.yml
Fixed .travis.yml


Former-commit-id: c368cfee832c6a75e16c9f4640184fb95ea91359 [formerly c9fc89981d3a17240321d6ce6a2e598f63817744]
Former-commit-id: 5a8583efb7522c097a7d44f1d425941d2e5b2140
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine