Check stream_set_read_buffer exists before calling
Check stream_set_read_buffer exists before calling

It's available PHP 5 >= 5.3.3

raulfraile/RMSPushNotificationsBundle,kuldeep199221/RMSPushNotificationsBundle,Clevis/PushNotifications,richsage/RMSPushNotificationsBundle,EDSI-Tech/RMSPushNotificationsBundle,funkjedi/PushNotificationPackage,davedevelopment/RMSPushNotificationsBundle,nucleartux/RMSPushNotificationsBundle,tomaszhanc/RMSPushNotificationsBundle,peternijssen/RMSPushNotificationsBundle