bump setup script version number to 0.8.2

Author: yipjustin

setup.py

@@ -10,7 +10,7 @@
 
 setup(
     name='PredictionIO',
-    version="0.8.1",
+    version="0.8.2",
     author=__author__,
     author_email=__email__,
     packages=['predictionio'],