Bug 315281 update copyrights for 3.6
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/ViewerColumn.java
/**
	 * @param labelProvider
	 * @param registerListener
	 */
	void setLabelProvider(CellLabelProvider labelProvider,
			boolean registerListener) {
		if (listenerRegistered && this.labelProvider != null) {
			this.labelProvider.removeListener(listener);
			listenerRegistered = false;
			if (registerListener) {
				this.labelProvider.dispose(viewer, this);
			}
		}
		this.labelProvider = labelProvider;
		if (registerListener) {
			this.labelProvider.initialize(viewer, this);
			this.labelProvider.addListener(listener);
			listenerRegistered = true;
		}
	}
	/**
	 * Return the editing support for the receiver.
	 * 
	 * @return {@link EditingSupport}
	 */
	EditingSupport getEditingSupport() {
		return editingSupport;
	}
	/**
	 * Set the editing support. Subclasses may extend but must call the super