Fixed messages getting loaded multiple times. (#170)

* Implemented loading recent messages.

* Fixed messages getting loaded multiple times.

src/twitch/twitchchannel.hpp

@@ -33,6 +33,8 @@ public:
     boost::signals2::signal<void()> roomIDchanged;
     boost::signals2::signal<void()> onlineStatusChanged;
 
+    pajlada::Signals::NoArgBoltSignal fetchMessages;
+
     QString roomID;
     bool isLive;
     QString streamViewerCount;
@@ -44,6 +46,8 @@ private:
     void setLive(bool newLiveStatus);
     void refreshLiveStatus();
 
+    void fetchRecentMessages();
+
     IrcManager &ircManager;
 
     bool isSpecial;