conpaas.core.controller: do not wait after all nodes have been created in __wait_for_nodes. Add __check_node.

git-svn-id: svn+ssh://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@4614 ef35cc4a-2640-4bbf-98bc-65920db7d8ae
conpaas-director: split application into various modules -- cpsdirector.{user,service,application}

git-svn-id: svn+ssh://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@4615 ef35cc4a-2640-4bbf-98bc-65920db7d8ae