Fix pip upgrade of setuptools in travis for py3 venv
Fix pip upgrade of setuptools in travis for py3 venv

Plexxi/st2,StackStorm/st2,Plexxi/st2,nzlosh/st2,StackStorm/st2,StackStorm/st2,nzlosh/st2,StackStorm/st2,nzlosh/st2,nzlosh/st2,Plexxi/st2,Plexxi/st2