Pykcs11

- fix source package generation

- getTokenInfo: replace NUL char by ' ' in utcTime
- dumpit:
. print hardwareVersion and firmwareVersion
. print slot flags
. move to next slot if token not present
- add support of CKA_WRAP_TEMPLATE/CKA_UNWRAP_TEMPLATE
- add samples for ECC key generation and use
- move from distutils to setuptools
- upload of wheels to pypi on "make dist"

- Do not fail when converting a UTF-8 string
- Documentation: convert from Epydoc to Sphinx
- some minor improvements

- Fix initPin()
- add tests for initPin(), setPin(), initToken()

- Fix "pip install"

- Python 3: use strings instead of binary buffers for CK_UTF8CHAR
PKCS11 types. The behavior is now the same as with Python 2
- allow non string PIN values (binary PIN) for login(), initToken(),
initPin(), setPin()
- fix support of RSA PKCS PSS mechanism
The mechanism object now uses a parameter "mechanism" instead of hard
coding the mechanism value to CKM_RSA_PKCS_PSS.
- add support of Python 2.7 on Windows
- add AppVeyor configuration (automatic Windows builds)
- ckbytelist: remove possibility to give a initial size
- samples/getinfo: do not list the mechanisms by default
- samples/events:
. do not list the mechanisms by default
. add support of pinpad readers
- some minor improvements