Fix a mismatching issue, where index.html.foo.en had recognized .html and

  Fix a mismatching issue, where index.html.foo.en had recognized .html and
  .en components, and exceptions index and foo.  This patch will ignore the
  'missing' exception html from the request, and go on to test the exception
  foo in the list.

  This does -not- imply that a request for index.foo will succeed, in the
  example above.  The pattern match tests index.foo[.*] so we wouldn't find
  index.html.foo.anything.  The pattern matching proposed at one time by
  Francis Daly would allow index.foo to succeed as well [although many to
  many matching is dangerous, see comments in this patch.]

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@91249 13f79535-47bb-0310-9956-ffa450edef68