Use prospector with tox

.prospector.yaml

@@ -0,0 +1,14 @@
+ignore-paths:
+  - docs
+  - axes/migrations
+
+pep8:
+  options:
+    max-line-length: 119
+
+pyflakes:
+  disable:
+    - F401
+
+dodgy:
+  run: false

requirements.txt

@@ -1,3 +1,4 @@
 django
+prospector
 sphinx-rtd-theme
 -e .

tox.ini

@@ -12,6 +12,7 @@ deps =
     django-111: django>=1.11,<2.0
     django-20: django>=2.0,<2.1
     django-master: https://github.com/django/django/archive/master.tar.gz
+    prospector
     py27: mock
 usedevelop = True
 ignore_outcome =
@@ -20,5 +21,6 @@ commands =
     coverage run -a --source=axes runtests.py -v2
     coverage run -a --source=axes runtests.py -v2 cache
     coverage report
+    prospector --zero-exit
 setenv =
     PYTHONDONTWRITEBYTECODE=1