Bug 130492 Provide a method to serialize the report with library information.
Currently, when engine generate the report document file, the document does not contain any library information. That will cause many propblem on server side. Model should provide a method to serialize the report with library information to a stream so that the generated report document can contain all information that the report need.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/util/ModelUtil.java
String encoding = UnicodeUtil.checkUTFSignature( inputStream );
		if ( encoding != null && !UnicodeUtil.SIGNATURE_UTF_8.equals( encoding ) )
		{
			Exception cause = new DesignParserException(
					DesignParserException.DESIGN_EXCEPTION_UNSUPPORTED_ENCODING );
			Exception fileException = new DesignFileException( fileName, cause );
			throw new SAXException( fileException );
		}
		return encoding;
	}
	/**
	 * 
	 * Performs property name sorting on a list of properties. Properties
	 * 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