Ensure latest setuptools is present.

Upgrading to the latest setuptools in isolation works fine, but
if the upgrade is caused by a dependency and the distribute/setuptools
upgrade happens in a bad sequence, one can wind up with a broken
setuptools environment.

Change-Id: I3d55232ac9377156e405e16dac2f07cfcaa70ff5

modules/openstack_project/manifests/base.pp

@@ -52,6 +52,11 @@ class openstack_project::base(
   }
 
   include pip
+  package { 'setuptools':
+    ensure   => latest,
+    provider => pip,
+    require  => Class['pip'],
+  }
   package { 'virtualenv':
     ensure   => latest,
     provider => pip,