Playlist system creation

Added a way to deal with playlist. Also now autoscroll to keep new playing kara on top. Fixed wrong command name

common/lkt.js

@@ -284,7 +284,6 @@ class LktClient {
                         once = true;
                         return null;
                     } else {
-                        logger.debug("bbb",data);
                         dataObj = __mpdToObject(data);
                         karaList = data.split("\n");
                         if(dataObj.continue){
@@ -293,7 +292,6 @@ class LktClient {
                         else{
                             karaList.splice(-1);
                         }
-                        logger.debug("aaa", karaList[0])
                         if(karaList[0] == "OK") {
                             client.close();
                         }