added unit test to insure that <%page> args can override names from __builtins__
added unit test to insure that <%page> args can override names from __builtins__

mindw/mako,wujuguang/mako,wujuguang/mako,mindw/mako,zzzeek/mako,sqlalchemy/mako,zzzeek/mako,Distrotech/mako,sqlalchemy/mako,Distrotech/mako