Remove python 3.4, 3.5 from test runtime

Author: konomae

.travis.yml

@@ -1,8 +1,6 @@
 language: python
 python:
   - "2.7"
-  - "3.4"
-  - "3.5"
   - "3.6"
   - "3.6-dev"
   - "3.7-dev"

setup.py

@@ -33,8 +33,6 @@ def get_version():
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
-        'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: Implementation :: CPython',
     ],