* Delete LINT section of install-ray.sh since it appears unused
* Delete install.sh since it appears unused
* Delete run_test.sh since it appears unused
* Put environment variables on separate lines in .travis.yml
* Move --jobs 50 out of install-ray.sh
* Delete upgrade-syn.sh since it appears unused
* Move CI bazel flags to .bazelrc via --config
* Make installations quieter
* Get rid of verbose Maven messages
* Install Bazel system-wide for CI so that there's no need to update PATH
* Recognize Windows as valid platform
Co-authored-by: Mehrdad <noreply@github.com>
mehrdadn