Removed explicit support for Python 2

Author: roycoding

setup.cfg

@@ -1,4 +1,4 @@
 [bdist_wheel]
 # This flag says that the code is written to work on both Python 2 and Python
 # 3.
-universal=1
+

setup.py

@@ -16,7 +16,7 @@
 setup(
     name='slots',
 
-    version='0.3.1',
+    version='0.4.0',
 
     description='A multi-armed bandit library for Python',
     long_description=long_description,
@@ -50,9 +50,9 @@
 
         # Specify the Python versions you support here. In particular, ensure
         # that you indicate whether you support Python 2, Python 3 or both.
-        'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
     ],
 
     # What does your project relate to?