Commented some requirements for testing

Author: syrusakbary

setup.py

@@ -55,8 +55,8 @@ def run_tests(self):
 
     install_requires=[
         'six>=1.10.0',
-        'graphql-core>=0.5.0',
-        'graphql-relay==0.3.3',
+        # 'graphql-core>=0.5.0',
+        # 'graphql-relay==0.4.2',
         'iso8601',
     ],
     tests_require=[