2018/10/13: Update: true resolved files in bazel

Recently, I described that bazel has basic support for resolved files. By now, the WORKSPACE file has no longer be aware that a resolved file is used; instead there is an option ("experimental", of course) telling bazel to completely ignore the WORKSPACE file and read a resolved file instead. Finally.

More details can be found in by official bazel blog post on first-class resolved files in bazel or the slides (in the form as I originally sent them to the organizers) of my BazelCon lightening talk on external repositories.