Code cleanup

src/DownloadEngine.cc

@@ -122,7 +122,7 @@ void executeCommand(std::deque<std::unique_ptr<Command>>& commands,
 {
   size_t max = commands.size();
   for(size_t i = 0; i < max; ++i) {
-    std::unique_ptr<Command> com = std::move(commands.front());
+    auto com = std::move(commands.front());
     commands.pop_front();
     if(com->statusMatch(statusFilter)) {
       com->transitStatus();

src/WebSocketSessionMan.cc

@@ -77,10 +77,9 @@ void WebSocketSessionMan::addNotification
   params->append(std::move(eventSpec));
   dict->put("params", std::move(params));
   std::string msg = json::encode(dict.get());
-  for(WebSocketSessions::const_iterator i = sessions_.begin(),
-        eoi = sessions_.end(); i != eoi; ++i) {
-    (*i)->addTextMessage(msg);
-    (*i)->getCommand()->updateWriteCheck();
+  for(auto& session : sessions_) {
+    session->addTextMessage(msg);
+    session->getCommand()->updateWriteCheck();
   }
 }