various improvements

- use dig for resolving host names
- ascon.c: fix terminator parsing
- property callback: change property before callback
- logger.c:default for logger period must be the old value instead of 1
- add frappy type history writing
- increase max. logreader line length
- HIPNONE returns "null" with json protocol
- encode strings properly in formatNameValue
- fix memory leak in json2tcl
- scriptcontext: do not show debug messages when script starts with underscore or when the "send" property is empty
- scriptcontext: remove args for action timestamp
- scriptcontext: "que" function will replace an already queued action, e.g. for 'halt
- introduced updatestatus script

hipadaba.c

@@ -1157,6 +1157,10 @@ void SetHdbProperty(pHdb node, char *key, char *value)
   hdbPropertyChange propMes;
 
   if (node != NULL && key != NULL && node->properties != NULL) {
+    propMes.type =  propertyChange;
+    propMes.key = key;
+    propMes.value = value;
+    InvokeCallbackChain(node,(pHdbMessage)&propMes);
     if (value == NULL) {
       StringDictDelete(node->properties, key);
     } else if (StringDictExists(node->properties, key)) {
@@ -1164,10 +1168,6 @@ void SetHdbProperty(pHdb node, char *key, char *value)
     } else {
       StringDictAddPair(node->properties, key, value);
     }
-    propMes.type =  propertyChange;
-    propMes.key = key;
-    propMes.value = value;
-    InvokeCallbackChain(node,(pHdbMessage)&propMes);
   }
 }