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
public static void insertCompatibleThemeToLibrary( Library library,
			Theme theme )
	{
		assert library != null;
		assert theme != null;
		
		
		String name = theme.getName( );
		assert !StringUtil.isBlank( name )
				&& ModelMessages.getMessage( Theme.DEFAULT_THEME_NAME ).equals(
						name );
		NameSpace ns = library.getNameSpace( Library.THEME_NAME_SPACE );
		assert library.getModuleNameSpace( Library.THEME_NAME_SPACE )
				.canContain( name );
		ns.insert( theme );
		
		library.getSlot( Library.THEMES_SLOT ).add( theme );
		
		theme.setContainer( library, Library.THEMES_SLOT );
	}
	/**
	 * Uses the new name space of the current module for reference property
	 * values of the given element. This method checks the <code>content</code>
	 * and nested elements in it.
	 * 
	 * @param module
	 *            the module that <code>content</code> attaches.
	 * @param content
	 *            the element to revise
	 * @param nameSpace