mvn-scalaxb: Update project name in install script
mvn-scalaxb: Update project name in install script

Update script to install scalaxb into local maven repository to reflect
new project name introduced in commit b1fb694: "renamed project"

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