[requires.io] dependency update

Author: requires

requirements-dev.txt

@@ -5,19 +5,19 @@
 # pip-compile requirements-dev.in
 #
 -e .
-django-appconf==1.0.1
-flake8==2.5.4
-isort==4.2.2
-mccabe==0.4.0 # via flake8
+django-appconf==1.0.2
+flake8==3.0.4
+isort==4.2.5
+mccabe==0.5.2 # via flake8
 pep257==0.7.0
-pep8-naming==0.3.3
+pep8-naming==0.4.1
 pep8==1.7.0 # via flake8
-pluggy==0.3.1 # via tox
+pluggy==0.4.0 # via tox
 py==1.4.31 # via pytest, tox
-pyflakes==1.0.0 # via flake8
-pytest-django==2.9.1
-pytest==2.8.7
-selenium==2.52.0
+pyflakes==1.3.0 # via flake8
+pytest-django==3.0.0
+pytest==3.0.3
+selenium==3.0.1
 six==1.10.0 # via django-appconf
-tox==2.3.1
-virtualenv==14.0.6 # via tox
+tox==2.4.1
+virtualenv==15.0.3 # via tox