Add DefaultServer.toString() and tidy DbOffline remove unnecessary log message

ebean-core/src/main/java/io/ebeaninternal/api/DbOffline.java

@@ -1,8 +1,6 @@
 package io.ebeaninternal.api;
 
 import io.ebean.annotation.Platform;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * Helper to indicate that an EbeanServer should come up offline
@@ -10,8 +8,6 @@ import org.slf4j.LoggerFactory;
  */
 public class DbOffline {
 
-  private static final Logger logger = LoggerFactory.getLogger(DbOffline.class);
-
   private static final String KEY = "ebean.dboffline";
 
   private static boolean generateMigration;
@@ -73,7 +69,6 @@ public class DbOffline {
   public static void reset() {
     generateMigration = false;
     System.clearProperty(KEY);
-    logger.debug("reset");
   }
 
 }

ebean-core/src/main/java/io/ebeaninternal/server/core/DefaultServer.java

@@ -490,6 +490,11 @@ public final class DefaultServer implements SpiServer, SpiEbeanServer {
     }
   }
 
+  @Override
+  public String toString() {
+    return "Database{" + serverName + "}";
+  }
+
   /**
    * Return the server name.
    */