Travis CI: Remove branches: only: master, dev

.travis.yml

@@ -4,10 +4,6 @@ cache: pip
 python:
     - 2.7
     - 3.6
-branches:
-  only:
-  - master
-  - dev
 install:
     - pip install -r requirements.txt
     - pip install flake8  # pytest  # add another testing frameworks later
@@ -15,7 +11,7 @@ before_script:
     # stop the build if there are Python syntax errors or undefined names
     - flake8 . --count --select=E901,E999,F821,F822,F823 --show-source --statistics
     # exit-zero treats all errors as warnings.  The GitHub editor is 127 chars wide
-    - flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - flake8 . --count --exit-zero --ignore=E265 --max-complexity=10 --max-line-length=127 --statistics
 script:
     - true  # pytest --capture=sys  # add other tests here
 notifications: