6.0.0-rc.0
* Simplify travis, cache seems to be taking far too long * Bump versions * Changelog entry * Dropping the tests from the Cloud Build run Cloud Build is responsible for generating our NPM artifacts, however I am planning on moving to Github Actions for this so the community has more visibility. Our Cloud Build image doesn't current have java, so the new emulator powered tests are failing. Rather than invest more in the Cloud Build scripts I'm just commenting out the test runner for now.