Javadoc update:

The example impl in Collector missed the new method acceptsDocsOutOfOrder, added and reformatted

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@788203 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/lucene/search/Collector.java

@@ -93,9 +93,14 @@ import org.apache.lucene.index.IndexReader;
  * searcher.search(query, new Collector() {
  *   private int docBase;
  * 
- *   // ignore scorer
+ *   <em>// ignore scorer</em>
  *   public void setScorer(Scorer scorer) {
  *   }
+ *
+ *   <em>// accept docs out of order (for a BitSet it doesn't matter)</em>
+ *   public boolean acceptsDocsOutOfOrder() {
+ *     return true;
+ *   }
  * 
  *   public void collect(int doc) {
  *     bits.set(doc + docBase);