Merge branch 'stratumsrv' into bfgminer-4.10.x

README.RPC

@@ -359,6 +359,7 @@ The list of requests - a (*) means it requires privileged access - and replies:
                                                        0 to 9999)
                               coinbase-sig (string)
                               http-port (valid port number)
+                              stratum-port (valid port number)
 
  pgaset|N,opt[,val] (*)
                none           This is equivalent to PROCSET on the first
@@ -535,6 +536,7 @@ Modified API commands:
  'pgadisable' - disable all processors for a numbered full device
  'pgaidentify' - choose first processor of numbered full device
  'pgaset' - choose first processor of numbered full device
+ 'setconfig' - add 'stratum-port' number
 
 Added API commands:
  'procs'