Bug 143173 No error for recursive including when exporting a report to a library
Steps to reproduce: 1.New a library named "Lib", add a lable in it 2.New a report, extends Lib.label 3.Export the report, choose target library "Lib" Expected result: Error to warn the recursive including Actual result: The target library includes itself without error
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/util/ModelUtil.java
* returned are sorted by their (locale-specific) display name. The name for
	 * sorting is assumed to be "groupName.displayName" in which "groupName" is
	 * the localized name of the property group, if any; and "displayName" is
	 * the localized name of the property. That is, properties without groups
	 * sort by their property display names. Properties with groups sort first
	 * by group name within the overall list, then by property name within the
	 * group. Sorting in English ignores case.
	 * <p>
	 * For example, if we have the groups "G" and "R", and the properties
	 * "alpha", "G.beta", "G.sigma", "iota", "R.delta", "R.epsilon" and "theta",
	 * the Properties returned is assumed to be sorted into that order.
	 * 
	 * Sorts a list of <code>PropertyDefn</code> s by there localized name.
	 * Uses <code>Collator</code> to do the comparison, sorting in English
	 * ignores case.
	 * 
	 * @param propDefns
	 *            a list that contains PropertyDefns.
	 * @return the list of <code>PropertyDefn</code> s that is sorted by their
	 *         display name.
	 */
	public static List sortPropertiesByLocalizedName( List propDefns )
	{
		
		
		
		
		
		ULocale locale = ThreadResources.getLocale( );
		Collator collator = Collator.getInstance( locale );