Use travis container-based infrastructure
Use travis container-based infrastructure

Jobs running on container-based infrastructure start up faster and
permit the use of caches for public repositories. As a default it makes
sense to enable this setting for generated gems.

mvz/bundler,mpapis/bundler,bundler/bundler,RochesterinNYC/bundler,RochesterinNYC/bundler,mpapis/bundler,dilumnavanjana/bundler,dilumnavanjana/bundler,seanlinsley/bundler,mvz/bundler,asutoshpalai/bundler,bronzdoc/bundler,bundler/bundler,seanlinsley/bundler,asutoshpalai/bundler,bronzdoc/bundler