Merge branch 'py3' into 'master'

Specify python3 when creating a virtualenv in README

See merge request !7

README.rst

@@ -45,10 +45,13 @@ VirtualEnv
 
 Not all things are lovely, so we use constraints to force the versions we
 we wish for without having to do anything ugly.  This may require a newer
-version of pip than is packaged with distros virtualenv
+version of pip than is packaged with distros virtualenv.
 
-- ``virtualenv2 ve2``
-- ``source ./ve2/bin/activate``
+Note that this application is python 3 only so you must create your virtualenv
+with a python3 interpretter.
+
+- ``virtualenv -p `which python3` venv``
+- ``source ./venv/bin/activate``
 - ``pip install -c constraints.txt -r requirements.txt``
 
 Pre-post-start configuration