Fix util_win32 to accept '/', '//', '//machine/', and '//machine/share/'
  for url parsing in order to accept those <Directory > blocks.

  Big warning: remove the assumption that *~* is the alias name, and always
  walk the tree for aliasing.  This test is flawed, because NT can be, and
  Novell always follows different conventions.  It is only safe to always
  test, but the old test remains with a scary symbol to include it.

  There is some other optimization available, to perhaps flag that the url
  has already been walked/translated, but that isn't incorporated [yet].


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@86292 13f79535-47bb-0310-9956-ffa450edef68