Change execScript to eval as execScript not supported on wp8.1
Change execScript to eval as execScript not supported on wp8.1

Pushwoosh/pushwoosh-phonegap-3.0-plugin,Pushwoosh/pushwoosh-phonegap-3.0-plugin,Pushwoosh/pushwoosh-phonegap-3.0-plugin,Pushwoosh/pushwoosh-phonegap-3.0-plugin