Bug 152828 Add the projectFolder property on module
When user doesn't set the resource folder path in designer, there should be a default working path for Birt to manage the report design and find the related resources. A new property should be added on Module: name: projectFolder type:URL This property only can be given from the open design method from session but should not be set after the module initialized. Concern about the backward compatiblity issue, a new method will be added. Open design with a config argument.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
* 
	 * @param sourceIndex
	 *            source position. The range is
	 *            <code>sourceIndex &lt; 0 || sourceIndex &gt;= list.size()</code>
	 * @param destIndex
	 *            destination position.The range is
	 *            <code> destIndex &lt; 0 || destIndex &gt;= list.size()</code>
	 * @throws SemanticException
	 */
	public void shiftScriptLibs( int sourceIndex, int destIndex )
			throws SemanticException
	{
		ElementPropertyDefn propDefn = module.getPropertyDefn( SCRIPTLIBS_PROP );
		PropertyCommand cmd = new PropertyCommand( getModule( ), getElement( ) );
		cmd.moveItem( new CachedMemberRef( propDefn ), sourceIndex, destIndex );
	}
	/**
	 * Add script lib
	 * 
	 * @param scriptLib
	 *            script lib
	 * @throws SemanticException
	 */
	public void addScriptLib( ScriptLib scriptLib ) throws SemanticException
	{
		ElementPropertyDefn propDefn = module.getPropertyDefn( SCRIPTLIBS_PROP );
		PropertyCommand cmd = new PropertyCommand( getModule( ), getElement( ) );
		cmd.addItem( new CachedMemberRef( propDefn ), scriptLib );
	}
}