+ [Messaging]
+ - propagate the interface cleanup from last week in datadesc, ie remove a
+ superfluous level of indirection. User pass adress of variable
+ containing data (both when sending and receiving), and not of a variable
+ being a pointer to the data. Let's say that I like it better ;)
+ The price for that is constructs like "int msg=*(int*)payload" in
+ handlers, but it's a fine price, IMHO.