Pyscard

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* Modify CardMonitoring's deleteObserver method to cleanly remove threads
* Python 3: fix smartcard/Synchronization.py
* Python 3: Fix SCardGetErrorMessage() on Windows
* PCSCPart10: add parseFeatureRequest(), parseTlvProperties()
* Fix PEP8 warnings
* Minor documentation improvements

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* include test/__init__.py in the archive tarball.
"make test" now works. That fixes build using Python 3.6

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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