Bug 139409 Properties file with multi-catalog
Details: Properties file with multi-catalog Step: 1. Set the resource folder as c:/source 2. Create a folder in resource folder: c:/source/properties/ 3. New a report design and create a properties in c:/source/properties/ 4. Add a label ans switch to Locatization, press ... 5. Add a key and value. Actual result: It said that the properties file is read-only and I can not add some key.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/ResourceEditDialog.java
{
	private Label nameLabel;
	private TableViewer viewer;
	private Text keyText, valueText;
	private Button btnDelete;
	private String baseName;
	private String folderName;
	private Properties content = new Properties( );
	private String propFileName;
	private boolean column1desc, column2desc;
	/**
	 * PropertyLabelProvider
	 */
	static class PropertyLabelProvider extends LabelProvider implements
			ITableLabelProvider
	{
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang.Object,
		 *      int)
		 */