Remove unnecesary dependence. M2crypto is not used. #79

Author: pitbulk

README.md

@@ -66,7 +66,6 @@ Installation
 ### Dependences ###
 
  * python 2.7
- * [M2Crypto](https://pypi.python.org/pypi/M2Crypto)  A Python crypto and SSL toolkit (depends on openssl, swig)
  * [dm.xmlsec.binding](https://pypi.python.org/pypi/dm.xmlsec.binding)  Cython/lxml based binding for the XML security library (depends on python-dev libxml2-dev libxmlsec1-dev)
  * [isodate](https://pypi.python.org/pypi/isodate)  An ISO 8601 date/time/duration parser and formater
  * [defusedxml](https://pypi.python.org/pypi/defusedxml)  XML bomb protection for Python stdlib modules

setup.py

@@ -32,7 +32,6 @@
     },
     test_suite='tests',
     install_requires=[
-        'M2Crypto==0.22.3',
         'dm.xmlsec.binding==1.3.2',
         'isodate==0.5.0',
         'defusedxml==0.4.1',