Introduce HandlerUserSettings to change user settings, e. g. pw changes

handlers/handlerfactory.cpp

@@ -32,6 +32,7 @@ SOFTWARE.
 #include "handlercategory.h"
 #include "handlerhistory.h"
 #include "handlerpagedelete.h"
+#include "handlerusersettings.h"
 
 std::unique_ptr<Handler> HandlerFactory::createHandler(const std::string &action, Session &userSession)
 {
@@ -75,6 +76,10 @@ std::unique_ptr<Handler> HandlerFactory::createHandler(const std::string &action
 	{
 		return produce<HandlerHistory>(userSession);
 	}
+	if(action == "usersettings")
+	{
+		return produce<HandlerUserSettings>(userSession);
+	}
 
 	return produce<HandlerInvalidAction>(userSession);
 }