Bug 204458 [Commands] Allow menu and toolbars to fire execution events
Keybindings will currently fire execution events when executing actions from the action framework. i.e. IActions with their actionDefinitionId set and IActionDelegates with the definitionId attribute in their action contributions. But it would be nice if selecting the menu or tool item would also fire the equivalent events. PW
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/CommandManager.java
return command.getHelpContextId();
	}
	/**
	 * Returns an array of parameterizations for the provided command by
	 * deriving the parameter ids and values from the provided
	 * <code>serializedParameters</code> string.
	 * 
	 * @param serializedParameters
	 *            a String encoding parameter ids and values; must not be
	 *            <code>null</code>.
	 * @param parameters
	 *            array of parameters of the command being deserialized; may be
	 *            <code>null</code>.
	 * @return an array of parameterizations; may be <code>null</code>.
	 * @throws NotDefinedException
	 *             if the command is not defined
	 * @throws SerializationException
	 *             if there is an error deserializing the parameters
	 * @since 3.2
	 */
	private final Parameterization[] getParameterizations(
			String serializedParameters, final IParameter[] parameters)
			throws SerializationException {
		if (serializedParameters == null
				|| (serializedParameters.length() == 0)) {
			return null;
		}
		if ((parameters == null) || (parameters.length == 0)) {
			return null;