replace 'iodev' by 'io' in cfg files

cfg/test_ppms_mf.cfg

@@ -9,62 +9,62 @@ bindport = 5000
 #[module tt]
 #class = secop_psi.ppms.Temp
 #.description = main temperature
-#iodev = ppms
+#io = ppms
 
 [module mf]
 class = secop_psi.ppms.Field
 .description = magnetic field
-iodev = ppms
+io = ppms
 
 #[module pos]
 #class = secop_psi.ppms.Position
 #.description = sample rotator
-#iodev = ppms
+#io = ppms
 
 #[module lev]
 #class = secop_psi.ppms.Level
 #.description = helium level
-#iodev = ppms
+#io = ppms
 
 #[module chamber]
 #class = secop_psi.ppms.Chamber
 #.description = chamber state
-#iodev = ppms
+#io = ppms
 
 #[module r1]
 #class = secop_psi.ppms.BridgeChannel
 #.description = resistivity channel 1
 #no = 1
 #value.unit = Ohm
-#iodev = ppms
+#io = ppms
 
 #[module i1]
 #class = secop_psi.ppms.Channel
 #.description = current channel 1
 #no = 1
 #value.unit = uA
-#iodev = ppms
+#io = ppms
 
 #[module v1]
 #class = secop_psi.ppms.DriverChannel
 #.description = voltage channel 1
 #no = 1
 #value.unit = V
-#iodev = ppms
+#io = ppms
 
 #[module tv]
 #class = secop_psi.ppms.UserChannel
 #.description = VTI temperature
 #enabled = 1
 #value.unit = K
-#iodev = ppms
+#io = ppms
 
 #[module ts]
 #class = secop_psi.ppms.UserChannel
 #.description = sample temperature
 #enabled = 1
 #value.unit = K
-#iodev = ppms
+#io = ppms
 
 [module ppms]
 class = secop_psi.ppms.Main