IndexReader.reopen discussion

[jason rutherglen]

There was this discussion regarding adding a reopen method to IndexReader 
however it seems to have dropped off the map.  Robert Engels submitted some 
code however it was not a patch.  
http://www.gossamer-threads.com/lists/lucene/java-dev/34898?search_string=reopen
 I would submit something but have no experience with this and it seems like 
something Yonik, Robert, or Doug could better implement.  I can test this once 
it's ready however.