Cluster: auto-commit was disabled after opening a connection.

Connection.getAutoCommit() is now much faster, specially when using the server mode.

h2/src/main/org/h2/store/FileLock.java

@@ -230,7 +230,7 @@ public class FileLock implements Runnable {
             transfer.setSocket(socket);
             transfer.init();
             transfer.writeInt(Constants.TCP_PROTOCOL_VERSION_6);
-            transfer.writeInt(Constants.TCP_PROTOCOL_VERSION_7);
+            transfer.writeInt(Constants.TCP_PROTOCOL_VERSION_8);
             transfer.writeString(null);
             transfer.writeString(null);
             transfer.writeString(id);