Update version number and supported Python versions

Author: daneah

setup.py

@@ -11,7 +11,7 @@
 
 setup(
     name='django-webmention',
-    version='0.0.3',
+    version='0.0.4',
     packages=find_packages(),
     description='A pluggable implementation of webmention for Django projects.',
     keywords='webmention pingback linkback blogging',
@@ -31,5 +31,6 @@
         'License :: OSI Approved :: MIT License',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
     ],
 )