Updated dependencies: use promise 2.0 and graphql-core 1.1

Author: syrusakbary

setup.py

@@ -82,9 +82,9 @@ def run_tests(self):
 
     install_requires=[
         'six>=1.10.0',
-        'graphql-core>=1.0.1',
+        'graphql-core>=1.1',
         'graphql-relay>=0.4.5',
-        'promise>=1.0.1',
+        'promise>=2.0',
     ],
     tests_require=tests_require,
     extras_require={

tox.ini

@@ -5,7 +5,8 @@ skipsdist = true
 [testenv]
 deps=
     pytest>=2.7.2
-    graphql-core>=1.0.1
+    graphql-core>=1.1
+    promise>=2.0
     graphql-relay>=0.4.5
     six
     blinker