Python-lefthandclient

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* Added new API
- Get API Version
* Fixed PEP8 violations
* Added tox environments to run tests with code coverage and to generate the documentation
* Change GitHub account reference from WaltHP to hp-storage.
* Modify the steps in the Installing from Source section to ensure correct
installation of dependencies and ordering.
* Added tox environments to run tests with code coverage and to generate the documentation
* Consolidated the test/README.rst into the top level README.rst and added clarifications
* Added the ability for getVolumes to filter based on cluster and fields.

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* Added missing Flask imports so that running unit tests against the mock LHOS
pass
* Added new API
- Find Server Volumes
* Updated the mock Flask server to support server API
calls.
* Added unit tests for server API calls.
* Added a volume unit test that makes sure that volumes are created with the
correct size.
* Added support for PEP8 checks with tox.
* Fixed various typos in the documentation.
* Fix duplicate debug log message issue that can occur when multiple client
objects are created.
* Updated setup.py package requirements to be consistent with the ones
defined in requirements.txt.
* Updated setup.py package test-requirements to be consistent with the ones
defined in test-requirements.txt.

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* Added support for query parameter in getVolume

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* Updated the REST API Client to be Python 3.0 compliant

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* First implementation of the REST API Client