Pyscard

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* SCardGetStatusChange(): fix a memory leak with Python 3
* SCardTransmit(): use SCARD_PCI_RAW for undefined protocol
* Improve epydoc documentation

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* Fix installation using pip and easy_install
* Avoid El Capitan SCardGetAttrib bug
* CardConnection: Add context management
* PCSCCardConnection: raise NoCardException if SCARD_E_NO_SMARTCARD
* Stop CardMonitor monitor thread after traceback print.
* minor improvements

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* Fix SCardControl() on Windows 7
* Fix installation using pip and easy_install

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* Fix toBytes regression
* Fix installation using pip
* improve pydoc documentation
* user-guide.rst: use real sample codes
* minor improvements

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* Create a new version so that the upload to Pypi does _not_
contain the swig generated files.

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* add Python3 support (Python2 is still supported)
* fix a lot of pylint warnings
* smartcard/test/* replace deprecated assert calls
* add tox support and coverage reports, run test suite on Travis
* add Travis CI support to automatically build on Unix
* add AppVeyor support to automatically build on Windows
* minor bugs fixed
* Big thank you to Alex Willmer for his work on pyscard