signal.send(value) - to fire signal unconditionally

[c-smile]

This

signal.value = newvalue;  

should notify subscribers only if value != newvalue - conditional notification;

But there is a practical need for unconditional fire also, I propose to add send(newValue) method:

signal.send(newvalue);  // fires the  signal unconditionally

Problem arises in situations like this:

objectChanged = signal(null);
...
obj.foo = "a";
objectChanged.value = obj; // sends notification as obj !== null;
...
obj.bar = "b";
objectChanged.value = obj; // oops, will not send notification, as the value (obj) is the same and was set in galaxy far, far away