Baseline: 3a95f35
   + 8378cd8: Rollback of commit
              a9b84575a32476a5faf991da22b44661d75c19b6.

Incompatible changes:

  - Set stamping to false by default (i.e., --nostamp)
  - Removed --objc_dump_syms_binary.
  - Removes --objc_gcov_binary flag.
  - Remove JAVAC "Make" variable
  - The startup flag --blaze_cpu is removed,

New features:

  - A new java test runner that support XML output and test filtering
    is supported. It can be used by specifying --nolegacy_bazel_java_test
    or by specifying the test_class attribute on a java_test.
  - Skylark aspects can now specify configuration fragment
    dependencies with fragments and host_fragments like rules can.

Important changes:

  - Support for downloading remote resources through proxies by
    setting HTTP_PROXY (or HTTPS_PROXY).
  - Timestamps within Android apks are removed to make apks
    deterministic.
  - Support aggregation over existing rules in Skylark extensions
    through native.rules and native.rule.
  - A tools/bazel script in the workspace will be executed
    as an opportunity to use a fixed version of Bazel (not
    implemented for the homebrew recipe yet).
  - --noimplicit_deps and --nohost_deps work correctly for Aspect
    attributes.
  - JDK-related targets are now available via @local_jdk (instead of
    @local-jdk).
  - j2objc tools can now be accessed via @bazel_j2objc, not
    @bazel-j2objc.
  - Repository rules must use names that are valid workspace names.
  - [rust] Update to Rust 1.6
  - Add support for .tar.xz archives to http_archive rules.
  - Make C++ modules compatible with tools using
    --compilation_prerequisites_only
  - [d] Update to DMD 2.070.0