Change amplifiers to standard version format and promote a few to stable

amplifiers/elecraft/kpa1500.c

@@ -65,7 +65,7 @@ const struct amp_caps kpa1500_amp_caps =
     AMP_MODEL(AMP_MODEL_ELECRAFT_KPA1500),
     .model_name =   "KPA1500",
     .mfg_name =     "Elecraft",
-    .version =      "20200112",
+    .version =      "20200112.0",
     .copyright =    "LGPL",
     .status =     RIG_STATUS_ALPHA,
     .amp_type =     AMP_TYPE_OTHER,

dummy/amp_dummy.c

@@ -337,9 +337,9 @@ const struct amp_caps dummy_amp_caps =
     AMP_MODEL(AMP_MODEL_DUMMY),
     .model_name =     "Dummy",
     .mfg_name =       "Hamlib",
-    .version =        "0.1",
+    .version =        "20200112.0",
     .copyright =      "LGPL",
-    .status =         RIG_STATUS_ALPHA,
+    .status =         RIG_STATUS_STABLE,
     .amp_type =       AMP_TYPE_OTHER,
     .port_type =      RIG_PORT_NONE,
 

dummy/netampctl.c

@@ -198,9 +198,9 @@ const struct amp_caps netampctl_caps =
     AMP_MODEL(AMP_MODEL_NETAMPCTL),
     .model_name =     "NET ampctl",
     .mfg_name =       "Hamlib",
-    .version =        "0.1",
+    .version =        "20200112.0",
     .copyright =      "LGPL",
-    .status =         RIG_STATUS_ALPHA,
+    .status =         RIG_STATUS_STABLE,
     .amp_type =       AMP_TYPE_OTHER,
     .port_type =      RIG_PORT_NETWORK,
     .timeout = 2000,