Fixed TransformerFacade doctype output for xalan::FormatterToXML
* "xsl:output" was disregarded for xalan::FormatterToXML based output
** the setting contained within this tag have to be passed manually to the constructor...
** the xalan standard implementation includes special handling for this case
** sadly there was no alternative to adding special handling in InputXSLT as well, it is really quite ugly
* added "dispatchTransformer" template member method to TransformerFacade
** calls xalan::FormatterToXML augmentation logic if needed, compiles template
* this problem also exists for FunctionTransform output to xercesc DOM
** this patch doesn't aim to fix it in that case, it will have to be fixed separately