PubSub system (#346)

* Add websocketpp dependency

* Initial pubsub commit

Renamed selection min and max variables to selectionMin and selectionMax
to bypass windows min/max macros being stupid.

TwitchAccount is now initialized with its User ID. It cannot be changed
after it has been initialized.

* Update openssl folder

* Update installation instructions

* Split up websocketpp dependency to its own code only and openssl.pri

* Add missing include to asio steady_timer

* Update dependencies for linux

src/providers/twitch/twitchmessagebuilder.cpp

@@ -606,7 +606,7 @@ void TwitchMessageBuilder::appendTwitchBadges()
             }
         } else if (badge.startsWith("subscriber/")) {
             if (channelResources.loaded == false) {
-                qDebug() << "Channel resources are not loaded, can't add the subscriber badge";
+                // qDebug() << "Channel resources are not loaded, can't add the subscriber badge";
                 continue;
             }