Bazel 1.0 released

Google has announcedversion 1.0 of its Bazel buildsystem. "A growing list of Bazel users attests to the widespread demand for scalable, reproducible, andmulti-lingual builds. Bazel helps Google be more open too: several largeGoogle open source projects, such as Angular and TensorFlow, useBazel. Users have reported 3x test time reductions and 10x faster buildspeeds after switching to Bazel."