Merge 20beb2b into af7b551

.travis.yml

@@ -21,7 +21,7 @@ install:
   # gym 0.11.0 causes an error with Python 2
   - pip install "gym!=0.11.0"
   # atari_py==0.1.4 causes an error
-  - pip install atari_py==0.1.1
+  - pip install atari_py>=0.2.0
   - pip install autopep8
   - pip install flake8
   - pip install coveralls