use lavaplayer fork, fix update alerts, fix special case repeat mode parse

src/main/java/com/jagrosh/jmusicbot/Listener.java

@@ -71,9 +71,9 @@ public class Listener extends ListenerAdapter
         {
             bot.getThreadpool().scheduleWithFixedDelay(() -> 
             {
-                User owner = bot.getJDA().getUserById(bot.getConfig().getOwnerId());
-                if(owner!=null)
+                try
                 {
+                    User owner = bot.getJDA().retrieveUserById(bot.getConfig().getOwnerId()).complete();
                     String currentVersion = OtherUtil.getCurrentVersion();
                     String latestVersion = OtherUtil.getLatestVersion();
                     if(latestVersion!=null && !currentVersion.equalsIgnoreCase(latestVersion))
@@ -82,6 +82,7 @@ public class Listener extends ListenerAdapter
                         owner.openPrivateChannel().queue(pc -> pc.sendMessage(msg).queue());
                     }
                 }
+                catch(Exception ex) {} // ignored
             }, 0, 24, TimeUnit.HOURS);
         }
     }

src/main/java/com/jagrosh/jmusicbot/settings/SettingsManager.java

@@ -43,7 +43,7 @@ public class SettingsManager implements GuildSettingsManager
                 JSONObject o = loadedSettings.getJSONObject(id);
 
                 // Legacy version support: On versions 0.3.3 and older, the repeat mode was represented as a boolean.
-                if (o.has("repeat") && o.getBoolean("repeat"))
+                if (!o.has("repeat_mode") && o.has("repeat") && o.getBoolean("repeat"))
                     o.put("repeat_mode", RepeatMode.ALL);