Add a tox config for testing with the pyuv-based IOLoop.

maint/test/pyuv/tox.ini

@@ -0,0 +1,15 @@
+[tox]
+envlist = py27
+setupdir = ../../..
+
+[testenv]
+# tornado-pyuv is not installable unless pyuv is installed first;
+# listing them both in deps doesn't install them in order.
+commands =
+         pip install git+https://github.com/saghul/tornado-pyuv.git
+         python -m tornado.test.runtests --ioloop=tornado_pyuv.UVLoop {posargs:}
+# twisted tests don't work on pyuv IOLoop currently.
+deps =
+     git+https://github.com/saghul/pyuv.git
+     futures
+     mock