Merge pull request #151 from msabramo/tox

Add support for tox (http://tox.testrun.org/)

.gitignore

@@ -3,3 +3,4 @@ _trial_temp
 dropin.cache
 docs/build
 *egg-info
+.tox

tox.ini

@@ -0,0 +1,12 @@
+# Tox (http://tox.testrun.org/) is a tool for running tests
+# in multiple virtualenvs. This configuration file will run the
+# test suite on all supported python versions. To use it, "pip install tox"
+# and then run "tox" from this directory.
+
+[tox]
+envlist = py26, py27
+
+[testenv]
+commands =
+    pip install --use-mirrors -r .travis/requirements-latest.txt
+    trial scrapy scrapyd