download: reworked connection:

- added shareable code with default proxy, headers and other settings for download tasks like images, symbols, mtgjson, etc;
- use XmageURLConnection.downloadText for text resources
- use XmageURLConnection.downloadBinary for any file resources
- added user agent with app version for all requests;
- added http logs and improved error messages;

Mage/src/main/java/mage/game/draft/DraftImpl.java

@@ -8,7 +8,7 @@ import mage.game.events.TableEvent.EventType;
 import mage.players.Player;
 import mage.players.PlayerList;
 import mage.util.ThreadUtils;
-import mage.util.XMageThreadFactory;
+import mage.util.XmageThreadFactory;
 import org.apache.log4j.Logger;
 
 import java.util.*;
@@ -248,7 +248,7 @@ public abstract class DraftImpl implements Draft {
 
         if (this.boosterLoadingExecutor == null) {
             this.boosterLoadingExecutor = Executors.newSingleThreadScheduledExecutor(
-                    new XMageThreadFactory(ThreadUtils.THREAD_PREFIX_TOURNEY_BOOSTERS_SEND)
+                    new XmageThreadFactory(ThreadUtils.THREAD_PREFIX_TOURNEY_BOOSTERS_SEND)
             );
         }
 

Mage/src/main/java/mage/util/XmageThreadFactory.java

@@ -8,13 +8,13 @@ import java.util.concurrent.atomic.AtomicInteger;
  *
  * @author JayDi85
  */
-public class XMageThreadFactory implements ThreadFactory {
+public class XmageThreadFactory implements ThreadFactory {
 
     private final String prefix;
     private final AtomicInteger counter = new AtomicInteger();
     private final boolean isDaemon;
 
-    public XMageThreadFactory(String prefix) {
+    public XmageThreadFactory(String prefix) {
         this(prefix, true);
     }
 
@@ -22,7 +22,7 @@ public class XMageThreadFactory implements ThreadFactory {
      * @param prefix   thread's starting name (can be changed by thread itself later)
      * @param isDaemon mark thread as daemon on non-writeable tasks (e.g. can be terminated at any time without data loss)
      */
-    public XMageThreadFactory(String prefix, boolean isDaemon) {
+    public XmageThreadFactory(String prefix, boolean isDaemon) {
         this.prefix = prefix;
         this.isDaemon = isDaemon;
     }