Increase default number of peers required before a node can mint/sync, and other settings

src/main/java/org/qortal/network/Network.java

@@ -88,7 +88,10 @@ public class Network {
 			"node4.qortal.org",
 			"node5.qortal.org",
 			"node6.qortal.org",
-			"node7.qortal.org"
+			"node7.qortal.org",
+			"node8.qortal.org",
+			"node9.qortal.org",
+			"node10.qortal.org"
 	};
 
 	public static final int MAX_SIGNATURES_PER_REPLY = 500;

src/main/java/org/qortal/settings/Settings.java

@@ -77,11 +77,11 @@ public class Settings {
 	/** Port number for inbound peer-to-peer connections. */
 	private Integer listenPort;
 	/** Minimum number of peers to allow block minting / synchronization. */
-	private int minBlockchainPeers = 5;
+	private int minBlockchainPeers = 10;
 	/** Target number of outbound connections to peers we should make. */
-	private int minOutboundPeers = 20;
+	private int minOutboundPeers = 40;
 	/** Maximum number of peer connections we allow. */
-	private int maxPeers = 50;
+	private int maxPeers = 80;
 
 	// Which blockchains this node is running
 	private String blockchainConfig = null; // use default from resources