Bug 65243 Build path dialog: Disable 'Add folder' when ex-/inclusion selected
RC1 On the build path dialog it would be better to disable 'Add folder' when ex-/inclusion selected to avoid confusion to what 'Add folder is releated'
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/SourceContainerWorkbookPage.java
private ListDialogField fClassPathList;
	private IJavaProject fCurrJProject;
	private IPath fProjPath;
	
	private Control fSWTControl;
	
	private IWorkspaceRoot fWorkspaceRoot;
	
	private TreeListDialogField fFoldersList;
	
	private StringDialogField fOutputLocationField;
	
	private SelectionButtonDialogField fUseFolderOutputs;
	
	private final int IDX_ADD= 0;
	private final int IDX_EDIT= 2;
	private final int IDX_REMOVE= 3;	
	public SourceContainerWorkbookPage(IWorkspaceRoot root, ListDialogField classPathList, StringDialogField outputLocationField) {
		fWorkspaceRoot= root;
		fClassPathList= classPathList;
	
		fOutputLocationField= outputLocationField;
		
		fSWTControl= null;
				
		SourceContainerAdapter adapter= new SourceContainerAdapter();