Removing hhvm-nightly from Travis CI according to https://github.com/travis-ci/travis-ci/issues/3788 and https://github.com/facebook/hhvm/issues/5220
Removing hhvm-nightly from Travis CI according to https://github.com/travis-ci/travis-ci/issues/3788 and https://github.com/facebook/hhvm/issues/5220

endeveit/cache,endeveit/cache