Added baseline for sphinx documentation and on2FACode event

The docs are still very WIP, but they should be functional. Just
execute `make html` in the docs folder, and you should be able to
navigate to `/docs/_build/html` and view it in your browser

setup.py

@@ -21,6 +21,7 @@ version = None
 author = None
 email = None
 source = None
+description = None
 with open(os.path.join('fbchat', '__init__.py')) as f:
     for line in f:
         if line.strip().startswith('__version__'):
@@ -31,7 +32,9 @@ with open(os.path.join('fbchat', '__init__.py')) as f:
             email = line.split('=')[1].strip().replace('"', '').replace("'", '')
         elif line.strip().startswith('__source__'):
             source = line.split('=')[1].strip().replace('"', '').replace("'", '')
-        elif None not in (version, author, email, source):
+        elif line.strip().startswith('__description__'):
+            description = line.split('=')[1].strip().replace('"', '').replace("'", '')
+        elif None not in (version, author, email, source, description):
             break
 
 setup(
@@ -40,7 +43,7 @@ setup(
     author_email=email,
     license='BSD License',
     keywords=["facebook chat fbchat"],
-    description="Facebook Chat (Messenger) for Python",
+    description=description,
     long_description=readme_content,
     classifiers=[
         'Development Status :: 2 - Pre-Alpha',