Fix issues with dolist in cl-ns.

* cl-ns.el ([namespace] cl-ns-aux): New namespace
(dolist, dotimes): Definitions that don't infloop.
([namespace] cl): Use cl-ns-aux.
* namespace.el (namespace-global, namespace--macro-function): New.
* namespace-test.el (test-h.5): New test.
Fix typos.

* README.org: