Change travis job to use tox

.travis.yml

@@ -2,14 +2,8 @@ language: python
 python:
   - '3.5'
   - '3.6'
-install:
+install: pip install tox-travis
-  - pip install -r requirements.txt
+script: tox
-  - pip install -r requirements-dev.txt
-  - python setup.py install
-  - pip install flake8
-  - pip install pytest
-before_script: flake8 sanic
-script: py.test -v tests
 deploy:
   provider: pypi
   user: channelcat

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 
-envlist = py35, py36
+envlist = py35, py36, flake8, report
 
 [testenv]
 
@@ -26,6 +26,8 @@ commands =
     flake8 sanic
 
 [testenv:report]
+deps=
+    coverage
 
 commands =
     coverage combine