Add tox and run tests for python 2.7/3.5 and Django 1.6-1.8

.gitignore

@@ -2,5 +2,6 @@
 dist/
 docs/_build
 __pycache__/
+.tox/
 *.swp
-
+*.pyc

channels/tests/settings.py

@@ -0,0 +1,7 @@
+SECRET_KEY = 'cat'
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+    }
+}

runtests.py

@@ -0,0 +1,15 @@
+#!/usr/bin/env python
+import os
+import sys
+
+import django
+from django.conf import settings
+from django.test.utils import get_runner
+
+if __name__ == "__main__":
+    os.environ['DJANGO_SETTINGS_MODULE'] = "channels.tests.settings"
+    django.setup()
+    TestRunner = get_runner(settings)
+    test_runner = TestRunner()
+    failures = test_runner.run_tests(["channels.tests"])
+    sys.exit(bool(failures))

tox.ini

@@ -0,0 +1,16 @@
+[tox]
+skipsdist = True
+envlist =
+    {py27,py35}-django-{16,17,18}
+
+[testenv]
+setenv =
+    PYTHONPATH = {toxinidir}:{toxinidir}
+deps =
+    six
+    redis==2.10.5
+    django-16: Django>=1.6,<1.7
+    django-17: Django>=1.7,<1.8
+    django-18: Django>=1.8,<1.9
+commands =
+    python {toxinidir}/runtests.py