Update setup.py version to 0.2.2

Author: fabioiuri

setup.py

@@ -19,7 +19,7 @@
 
 setup(
     name="DRecPy",
-    version="0.2.1",
+    version="0.2.2",
     author="Fabio Colaço",
     author_email="fabioiuri@live.com",
     description="Deep Recommenders with Python: "