Make swift API of CDVBMSClient aligned with JavaScript spec
Make swift API of CDVBMSClient aligned with JavaScript spec

ibm-bluemix-mobile-services/bms-clientsdk-cordova-plugin-core,ibm-bluemix-mobile-services/bms-clientsdk-cordova-plugin-core,ibm-bluemix-mobile-services/bms-clientsdk-cordova-plugin-core