Add getDeviceToken method in response interface
Merge pull request #151 from gaowei-space/fix_apns_res_interface_func… …_gaowei fix: APNs Interface Undefined method "getDeviceToken"
Merge pull request #151 from gaowei-space/fix_apns_res_interface_func… …_gaowei fix: APNs Interface Undefined method "getDeviceToken"