Use transparent addToCrawler in AutoSearch instead of addToIndex

This would likely also be of advantage for RSS import/schedule as
following bug-reports suggest
http://mantis.tokeek.de/view.php?id=569
http://mantis.tokeek.de/view.php?id=655

source/net/yacy/search/AutoSearch.java

@@ -289,7 +289,7 @@ public class AutoSearch extends AbstractBusyThread {
                     urls.add(new DigestURL(entry, (byte[]) null));
                     this.gotresults++;
                 }
-                sb.addToIndex(urls, null, "AutoSearch", null, true);
+                sb.addToCrawler(urls, false);
                 ConcurrentLog.info(AutoSearch.class.getName(), "added " + urls.size() + " results from " + seed.getName() + " to index for query=" + currentQuery);
             } catch (IOException ex) {
                 ConcurrentLog.info(AutoSearch.class.getName(), "no answer from " + seed.getName());

source/net/yacy/search/Switchboard.java

@@ -3292,6 +3292,8 @@ public final class Switchboard extends serverSwitch {
     /**
      * load the content of a URL, parse the content and add the content to the index This process is started
      * concurrently. The method returns immediately after the call.
+     * Loaded/indexed pages are added to the given SearchEvent. If this is not required prefer addToCrawler
+     * to spare concurrent processes, bandwidth and intransparent crawl/load activity
      *
      * @param url the url that shall be indexed
      * @param searchEvent (optional) a search event that shall get results from the indexed pages directly
@@ -3328,7 +3330,7 @@ public final class Switchboard extends serverSwitch {
                 continue;
             }
             requests.add(request);
-        }
+            }
         
         new Thread() {
             @Override