Add tox environments to gate pecan against openstack/magnum
Add tox environments to gate pecan against openstack/magnum

Change-Id: Ie3ec3dc65ae22973fe831a29792eac845cf15376

jdandrea/pecan,StackStorm/pecan,pecan/pecan,ryanpetrello/pecan,StackStorm/pecan,ryanpetrello/pecan,jdandrea/pecan,pecan/pecan