Properly fix eval command failing in DMs

Author: MichailiK

src/main/java/com/jagrosh/jmusicbot/commands/owner/EvalCmd.java

@@ -20,6 +20,7 @@
 import com.jagrosh.jdautilities.command.CommandEvent;
 import com.jagrosh.jmusicbot.Bot;
 import com.jagrosh.jmusicbot.commands.OwnerCommand;
+import net.dv8tion.jda.api.entities.ChannelType;
 
 /**
  *
@@ -45,6 +46,10 @@ protected void execute(CommandEvent event)
         se.put("bot", bot);
         se.put("event", event);
         se.put("jda", event.getJDA());
+        if (event.getChannelType() != ChannelType.PRIVATE) {
+            se.put("guild", event.getGuild());
+            se.put("channel", event.getChannel());
+        }
         try
         {
             event.reply(event.getClient().getSuccess()+" Evaluated Successfully:\n```\n"+se.eval(event.getArgs())+" ```");