Bug 218884 [DataBinding] Add API: WorkbenchObservables
... for things like listening to ISelectionService
bundles/org.eclipse.core.databinding.observable/src/org/eclipse/core/databinding/observable/Observables.java
*/
	public static IObservableValue proxyObservableValue(IObservableValue target) {
		return new DecoratingObservableValue(target, false);
	}
	/**
	 * Returns an observable set that contains the same elements as the given
	 * set, and fires the same events as the given set, but can be disposed of
	 * without disposing of the wrapped set.
	 * 
	 * @param target
	 *            the set to wrap
	 * @return a disposable proxy for the given observable set
	 */
	public static IObservableSet proxyObservableSet(IObservableSet target) {
		return new DecoratingObservableSet(target, false);
	}
	/**
	 * Returns an observable list that contains the same elements as the given
	 * list, and fires the same events as the given list, but can be disposed of
	 * without disposing of the wrapped list.
	 * 
	 * @param target
	 *            the list to wrap
	 * @return a disposable proxy for the given observable list
	 * @since 1.1
	 */
	public static IObservableList proxyObservableList(IObservableList target) {
		return new DecoratingObservableList(target, false);
	}
	/**