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 reloadLibrary( String reloadPath ) throws SemanticException,
			DesignFileException
	{
		if ( StringUtil.isEmpty( reloadPath ) )
			return;
		String path = null;
		try
		{
			path = new File( reloadPath ).toURL( ).toString( );
		}
		catch ( MalformedURLException e )
		{
			DesignParserException ex = new DesignParserException(
					new String[]{path},
					DesignParserException.DESIGN_EXCEPTION_FILE_NOT_FOUND );
			List exceptionList = new ArrayList( );
			exceptionList.add( ex );
			throw new DesignFileException( path, exceptionList );
		}
		LibraryCommand command = new LibraryCommand( module );
		command.reloadLibrary( path );
	}
	/**
	 * Drops the given library from the design and break all the parent/child
	 * relationships. All child element will be localized in the module.
	 * 
	 * @param library
	 *            the given library to drop
	 * @throws SemanticException
	 *             if errors occured when drop the library.It may be because