[bugfix][PUSH-23605] check if styleDictionary object is NSDictionary
[bugfix][PUSH-23605] check if styleDictionary object is NSDictionary

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