fixed up docs a bit more, with refs to latest UWS spec.
fixed up docs a bit more, with refs to latest UWS spec.


git-svn-id: 311fcc5b8b03427d323cee07bbb9e5a14d8d22e9@98 728ff76a-78ac-11de-a72b-d90af8dea425

opencadc/uws