google-cloud-monitoring 0.23.0

• Storing all connection data on Client instead of on private Connection (#2970)
• Renaming connection module as _http and making Connection class non-public. (#3033)
• google.cloud.monitoring.__version__ attribute added (#3046)
• On HTTP requests, sending X-Goog-API-Client header with value gl-python/x.y.z gccl/a.b.c where x.y.z is the version of Python that is running and a.b.c is the version of the monitoring package being used (#3046)
• Changing from Beta to Alpha classifier (#3027)

PyPI: https://pypi.python.org/pypi/google-cloud-monitoring/0.23.0