Version v4.0.0 for Moqui Framework 4.0 Release

Release v3.9.9 - Last release before v4.0.0

Update XML files to use new XSD references for the 3.0.0 release seri…

…es (#8)

In produce#ExampleMessage support systemMessageTypeId override

In produce#ExampleMessage support systemMessageTypeId override

Add more commented error scenario tests in consume#ExampleMessage

Use moqui version instead in component.xml

Small change for new ResourceReference package

Small change for new ResourceReference package

Small cleanup in FTL demo, changed reference to PegDown from Markdown4J