Fixed original Exception using info in https://jaxp.java.net/1.5/JAXP1.5Guide.html; new Exception: [java.io.IOException: Server returned HTTP response code: 403 for URL: http://www.musicxml.org/dtds/partwise.dtd]
Fixed original Exception using info in https://jaxp.java.net/1.5/JAXP1.5Guide.html; new Exception: [java.io.IOException: Server returned HTTP response code: 403 for URL: http://www.musicxml.org/dtds/partwise.dtd]

gnewton/chidley,gnewton/chidley