Merge branch 'stable-3.4' into stable-3.5

* stable-3.4:
  Count uploader as a resolved reviewer
  UI: Don't suggest unsupported system groups
  Document that configured groups must be visible to uploader
  Bazel: Remove unnecessary plugin_name parameter

Change-Id: I60dc362e4f4f0c5a8407c261e5120325888bc516