Added a long description for PyPI.

Author: toastdriven

setup.py

@@ -8,6 +8,7 @@
     description='Pluggable search for Django.',
     author='Daniel Lindsley',
     author_email='[email protected]',
+    long_description=open('README.rst', 'r').read(),
     url='http://haystacksearch.org/',
     packages=[
         'haystack',
@@ -30,4 +31,4 @@
         'Programming Language :: Python',
         'Topic :: Utilities'
     ],
-)
+)