message: Ensure .tf_configure.bazelrc is written to root of TF repo.
  Had issues when running configure.py script from outside of TF repo. Ensuring
  that the .bazelrc file from configure is written to base repo directory.
diff: @@ -30,7 +30,8 @@ try:
  except ImportError:
  from distutils.spawn import find_executable as which
  -_TF_BAZELRC = '.tf_configure.bazelrc'
  +_TF_BAZELRC = os.path.join(os.path.dirname(os.path.abspath(__file__)),
  + '.tf_configure.bazelrc')
  _DEFAULT_CUDA_VERSION = '8.0'
  _DEFAULT_CUDNN_VERSION = '6'
  _DEFAULT_CUDA_COMPUTE_CAPABILITIES = '3.5,5.2'
  