message: Add better defaults to bazel.rc
diff: -build --define version=0.0.0.dev0
  -build --build_tag_filters=-msvc
  +build -c opt
  +test -c opt
  +run -c opt
  +build --spawn_strategy=standalone
  test --spawn_strategy=standalone
  -test --test_timeout_filters=-eternal
  +run --spawn_strategy=standalone
  +
  +build --genrule_strategy=standalone
  +test --genrule_strategy=standalone
  +run --genrule_strategy=standalone
  +
  +build --define=version=0.0.0.dev0
  +build --build_tag_filters=-msvc
  test --test_tag_filters=-msvc
  +test --test_timeout_filters=-eternal
  +test --test_output=streamed
  +test --test_env=PATH
  -build:darwin --build_tag_filters=-msvc
  -test:darwin --strategy=TestRunner=standalone
  -test:darwin --test_tag_filters=-msvc
  +build:darwin --build_tag_filters=-darwin_fail,-msvc
  +test:darwin --test_tag_filters=-darwin_fail,-msvc
  build:ubuntu-14.04 --cpu k8
  build:ubuntu-14.04 --build_tag_filters=-msvc
  