Core: Fixed url from setup.py, again.

Author: Andres Tarantini

setup.py

@@ -6,7 +6,7 @@
     author="Mango Development Team",
     author_email="[email protected]",
     packages=["pymango"],
-    url="https://github.com/atarantini/mango-python",
+    url="https://github.com/Mango/mango-python",
     license="LICENSE",
     description="Python library for Mango Payment API",
     long_description="Basic python library to interact with Mango Payment API",