Merge branch 'stable-3.0'

* stable-3.0:
  Replace bazel-genfiles with bazel-bin in documentation
  Upgrade bazlets to latest stable-3.0 to build with 3.0.3 API
  Bump bazel version to 1.0.0

Change-Id: I59913b6b778a2c6da8e11b407fcc92d04a6d096a