Bug 114615 [Markers] No feedback for 'Completed' tasks
There's not longer any 'check box' indicator on the Tasks View so clients can't determine whether a task has been completed or not... This is a regression...
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/TableView.java
* Create the columns in the tree.
	 * 
	 * @param tree
	 */
	protected void createColumns(final Tree tree) {
		SelectionListener headerListener = getHeaderListener();
		TableLayout layout = new TableLayout();
		tree.setLayout(layout);
		tree.setHeaderVisible(true);
		final IField[] fields = getVisibleFields();
		ColumnLayoutData[] columnWidths = getSavedColumnData();
		for (int i = 0; i < fields.length; i++) {
			layout.addColumnData(columnWidths[i]);
			TreeColumn tc = new TreeColumn(tree, SWT.NONE, i);
			tc.setText(fields[i].getColumnHeaderText());
			tc.setImage(fields[i].getColumnHeaderImage());
			tc.addSelectionListener(headerListener);
		}
	}
	/**
	 * Create the actions for the receiver.
	 */
	protected void createActions() {
		if (getSortDialog() != null) {
			sortAction = new TableSortAction(this, getSortDialog());
		}
	}
	protected MenuManager initContextMenu() {
		MenuManager mgr = new MenuManager();
		mgr.setRemoveAllWhenShown(true);