mvn-scalaxb: Set release version to 0.6.9.
mvn-scalaxb: Set release version to 0.6.9.

briantopping/scalaxb,briantopping/scalaxb,Banno/scalaxb,justjoheinz/scalaxb,Banno/scalaxb,justjoheinz/scalaxb,Fayho/scalaxb,Fayho/scalaxb,Fayho/scalaxb,Banno/scalaxb,justjoheinz/scalaxb,eed3si9n/scalaxb,eed3si9n/scalaxb,briantopping/scalaxb,eed3si9n/scalaxb