Fix issues with surt-source, surt-dump file paths

* ConfigPathConfigurer, PathFixupListener
    notify beans when paths fixed
* SurtPrefixedDecideRule.java
    only read source prefixes after path fixup; dump after read or any batch of seeds
* SeedModule.java, TextSeedModule.java, SeedListener.java
    new concludedSeedBatch event 
* AbstractFrontier.java, StatisticsTracker.java
    ignore new concluded-batch event
* AlertThreadGroup.java, JobResource.java
    new mechanism for threads not part of AlertThreadGroup to temporarily redirect their logging to provided (job) logger

commons/src/main/java/org/archive/spring/PathFixupListener.java

@@ -0,0 +1,28 @@
+/*
+ *  This file is part of the Heritrix web crawler (crawler.archive.org).
+ *
+ *  Licensed to the Internet Archive (IA) by one or more individual 
+ *  contributors. 
+ *
+ *  The IA licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+ 
+package org.archive.spring;
+
+/**
+ * Interface for notifying a bean that its ConfigPath relative paths 
+ * have been fixed-up. 
+ */
+public interface PathFixupListener {
+    public void pathsFixedUp();
+}