added functionality to pickle filtered dataframes

Author: dyumanaditya

setup.py

@@ -8,7 +8,7 @@
 
 setup(
     name = 'pyreason',
-    version = '1.1.3',
+    version = '1.1.4',
     author = 'Dyuman Aditya',
     author_email = '[email protected]',
     description = 'An explainable inference software supporting annotated, real valued, graph based and temporal logic',