[MRM-864] -use a lucene Filter with BooleanQuery and the LuceneQuery for searching within the search results -added a checkbox in the general search page to search from the results only -maintain a list of previous query strings if searchResultsOnly option is enabled in general search
archiva/trunk/archiva-modules/archiva-base/archiva-indexer/src/main/java/org/apache/maven/archiva/indexer/search/CrossRepositorySearch.java