Update flake8 from 3.3.0 to 3.4.1 (#97)

pyup.io bot · asvetlov · commit d30a158345e0 · 2017-08-04T12:59:21.000+03:00
diff --git a/requirements-dev.txt b/requirements-dev.txt
@@ -1,5 +1,5 @@
 -e .
-flake8==3.3.0
+flake8==3.4.1
 pytest==3.2.0
 pytest-cov==2.4.0
 coverage==4.3.4
