Upgrade to 1.3.1 version.

Author: Giorgio Salluzzo

setup.py

@@ -16,7 +16,7 @@
 
 setup(
     name='mocket',
-    version='1.3.0',
+    version='1.3.1',
     author='Andrea de Marco, Giorgio Salluzzo',
     author_email='[email protected], [email protected]',
     url='https://github.com/mocketize/python-mocket',