Get all tests passing with --all_incompatible_changes under Bazel 0.20.0

[greggdonovan]

rules_d is a dependency for rules_docker, a ruleset that we depend on heavily. We don't use d-lang, but we'd like these rules to pass with --all_incompatible_changes so that we can test that flag on rules_docker.

I tried this myself but rules_d doesn't seem to pass it's tests with Bazel 0.20.0 called via bazel test --incompatible_remove_native_http_archive=false //..., so I couldn't make any progress.