Added CI configuration

.travis.yml

@@ -0,0 +1,8 @@
+sudo: false
+language: python
+python:
+- '3.5'
+- '3.6'
+install:
+- pip install tox-travis
+script: tox

tox.ini

@@ -0,0 +1,17 @@
+[tox]
+envlist = py{35,36},flake8
+
+[testenv]
+commands = py.test
+deps =
+  pytest
+  pytest-asyncio
+
+[testenv:flake8]
+commands = flake8 grpclib tests setup.py
+deps =
+  flake8
+
+[travis]
+python =
+  3.5: py35,flake8