Removed loading of schema resources, must be done by calling class. Added XmlUtil unit tests.
Removed loading of schema resources, must be done by calling class.
Added XmlUtil unit tests.

git-svn-id: 311fcc5b8b03427d323cee07bbb9e5a14d8d22e9@948 728ff76a-78ac-11de-a72b-d90af8dea425

opencadc/uws