Update bazel rules_webtesting dep to work with Bazel 0.10.0 (#931)
Update bazel rules_webtesting dep to work with Bazel 0.10.0 (#931)

Fix #929 by following up on #883 to also update the `rules_webtesting` dependency, which was also suffering from a broken version comparison that started failing with Bazel 0.10.0.

tensorflow/tensorboard,qiuminxu/tensorboard,qiuminxu/tensorboard,tensorflow/tensorboard,qiuminxu/tensorboard,qiuminxu/tensorboard,tensorflow/tensorboard,tensorflow/tensorboard,qiuminxu/tensorboard,tensorflow/tensorboard,tensorflow/tensorboard,qiuminxu/tensorboard,tensorflow/tensorboard