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
*/
	public void reloadLibraries( ) throws SemanticException,
			DesignFileException
	{
		for ( Iterator iter = getLibraries( ).iterator( ); iter.hasNext( ); )
		{
			LibraryHandle library = (LibraryHandle) iter.next( );
			reloadLibrary( library );
		}
	}
	/**
	 * Reloads the library with the given library file path. If the library
	 * already is included directly or indirectly(that is, the reload path could
	 * be the path of grandson of this module), reload it. If the library is not
	 * included, exception will be thrown.
	 * <p>
	 * Call this method cautiously ONLY on the condition that the library file
	 * is REALLY changed outside. After reload successfully, the command stack
	 * is cleared.
	 * 
	 * @param reloadPath
	 *            this is supposed to be an absolute path, not in url form.
	 * @throws SemanticException
	 *             if error is encountered when handling
	 *             <code>IncludeLibrary</code> structure list. Or it maybe
	 *             because that the given library is not found in the design. Or
	 *             that the library has descedents in the current module
	 * @throws DesignFileException
	 *             if the library file is not found, or has fatal error.
	 */