Sets the specified properties.
ip.installationProgress().set(paramsObj);
Type: Object
A list of property names and values in JSON format.
The example sets installation progress to the english localization:
var u = $au.uploader({id: 'Uploader1'});
var ip = $au.installationProgress(u);
ip.installationProgress().set($au.ip_language.en);
u.writeHtml();