Python-wepay

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* Python 3 compatible
* Calls are made using `requests <http://docs.python-requests.org/en/latest/>`_
library by default (if installed), falls back to `urllib
<https://docs.python.org/3/library/urllib.htmlmodule-urllib>`_ if `requests`
are not installed or if ``WePay`` is initialized with
``use_requests=False``.
* ``WePayConnectionError`` is raised
in case there is a problem connecting to WePay server, ex. timeout.
* Addition of a full test suit.
* Minor:

* 'original_ip' and 'original_device' params are now optional in
`/credit_card/create`.
* ``silent`` mode is more flexible.
* Moved ``SubscriptionPlan`` and ``SubscriptionCharge`` to their own modules.
* Moved ``WePayWarning`` over to ``wepay.exceptions`` module.

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* New API version 2014-01-08 changes are reflected in this SDK version:

* implemented `/user/register` and `user/resend_confirmation` calls.
* added `/account/get_update_uri` and `/account/get_reserve_details`
* depricated `/account/add_bank`, `/account/balance`, `/account/get_tax`
and `/account/set_tax` calls.

* restructured SDK in such a way that all API objects are separate classes, so
as an example, if we have a WePay instance ``api = WePay()`` and we want to
make a `/account/find` call, it will look like this ``api.account.find()``
instead of ``api.account_find()`` (notice **.** instead of **_**), although in
this version both are equivalent, latter one is depricated and will be removed
in version 1.3. Despite these changes lookup calls will be the same, ex.
``api.account(12345)``.

* Added flexibility to use different API version per call basis. So it is now
possible to make a depricated call like this: ``api.account.balance(1234,
api_version='2011-01-15')``

* added ``batch_reference_id`` keyword argument to each call that accepts
``batch_mode``

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* Added required arguments to `/credit_card/create` call:

* original_ip
* original_device

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* Added subscription calls:

* `/subscription_plan`
* `/subscription`
* `/subscription_charge`

* Few bug and spelling fixes.

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* Initial release