MyTreeRenderer: Renamed isTest method to isActive.
MyController: Basic row selection.
MyView: Clean up and getTree method.
MyTreeRenderer: Change folder colors.
MyController: Update RowListener.
MyController: Add to RowListener.
The RowListener now adds all selected roles to an array which it then
passes onto the setSelectedRoles method.
MyTreeRenderer: Change isActive to nodeContainsRole. 
Add an input for the role data array, this allows the nodeContainsRole
method to search across the input array.
MyTreeRenderer: Add bold text for selected nodes.
MyController: Hide JTree root node.
MyController: Add root node handles.