8010495: Update JAXP NetBeans project - add support for generating javadoc
Summary: Make it possible to use NetBeans to edit the jaxp sources and to generate a preview of the associated javadoc.
Reviewed-by: joehw, alanb
8005954: JAXP Plugability Layer should use java.util.ServiceLoader
Summary: This fix replaces manual processing of files under META-INF/services in JAXP factories by calls to java.util.ServiceLoader.
Reviewed-by: alanb, joehw, mchung