Merge pull request #59 from marain87/master

#58 fix open socket with custom header issue

Author: WrathChaos

Example/StompClientLib.swift

@@ -134,7 +134,9 @@ public class StompClientLib: NSObject, SRWebSocketDelegate {
     private func connect() {
         if socket?.readyState == .OPEN {
             // Support for Spring Boot 2.1.x
-            connectionHeaders = [StompCommands.commandHeaderAcceptVersion:"1.1,1.2"]
+            if (connectionHeaders == nil) {
+                connectionHeaders = [StompCommands.commandHeaderAcceptVersion:"1.1,1.2"]
+            }
             // at the moment only anonymous logins
             self.sendFrame(command: StompCommands.commandConnect, header: connectionHeaders, body: nil)
         } else {

StompClientLib/Classes/StompClientLib.swift

@@ -134,7 +134,9 @@ public class StompClientLib: NSObject, SRWebSocketDelegate {
     private func connect() {
         if socket?.readyState == .OPEN {
             // Support for Spring Boot 2.1.x
-            connectionHeaders = [StompCommands.commandHeaderAcceptVersion:"1.1,1.2"]
+            if (connectionHeaders == nil) {
+            	connectionHeaders = [StompCommands.commandHeaderAcceptVersion:"1.1,1.2"]
+            }
             // at the moment only anonymous logins
             self.sendFrame(command: StompCommands.commandConnect, header: connectionHeaders, body: nil)
         } else {