Adds the ability to convert README file for Pypi

We can potentially use pypandoc to conditionally try to convert the current reaadme markdown into restructured text. If not will simply send over the markdown as is to Pypi.

setup.py

@@ -1,8 +1,16 @@
 import os
 from setuptools import setup
 
-with open(os.path.join(os.path.dirname(__file__), 'README.rst')) as readme_file:
-    README = readme_file.read()
+try:
+    from pypandoc import convert
+
+    def read_md(f): return convert(f, 'rst')
+except ImportError:
+    print("warning: pypandoc module not found, could not convert Markdown to RST")
+
+    def read_md(f): return open(f, 'r').read()
+
+README = read_md('README.md')
 
 # allow setup.py to be run from any path
 os.chdir(os.path.normpath(os.path.join(os.path.abspath(__file__), os.pardir)))