Add tox.

CHANGES.txt

@@ -1,6 +1,8 @@
 Next release
 ------------
 
+- Added support for continuous integration using ``tox`` and ``jenkins``.
+
 - Added support for PyPy.
 
 - Added 'setup.py dev' alias (runs ``setup.py develop`` plus installs

tox.ini

@@ -0,0 +1,28 @@
+[tox]
+envlist = 
+    py24,py25,py26,py27,pypy,cover
+
+[testenv]
+commands = 
+    python setup.py test -q
+deps =
+    Paste
+    virtualenv
+    setuptools-git
+
+[testenv:cover]
+basepython =
+    python2.6
+commands = 
+    nosetests --with-xunit --with-xcoverage
+deps =
+    Paste
+    virtualenv
+    nose
+    coverage
+    nosexcover
+    setuptools-git
+
+# we separate coverage into its own testenv because a) "last run wins" wrt
+# cobertura jenkins reporting and b) pypy and jython can't handle any
+# combination of versions of coverage and nosexcover that i can find.