Pyflix2

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- Adding a new method to download the entire catalog into a file.

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- Issue 6: Add support for downloading full catalog in lib as well as in command line
- Issue 8: Incorporate netflix api change to api-public.netflix.com
- Issue 9: Update codebase to work with requests v1.1.0

Backward incompatible changes
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- ``get_user`` api signature has changed (require one more parameter ``user_id``)
- Addition of ``user_id`` in ``~/.pyflix.cfg``
- ``get_access_token`` returns additional ``user_id``

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- Fixed access token retrival code in __main__.py
- Fixed typo in sample config file

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- Issue 5: Fixed circular dependency in setup.py

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- Initial version