Add simple program to show #docs  in given index and Lucene version of index.
Add simple program to show #docs  in given index and Lucene version of index.

netarchivesuite/netarchivesuite-svngit-migration,netarchivesuite/netarchivesuite-svngit-migration,netarchivesuite/netarchivesuite-svngit-migration,netarchivesuite/netarchivesuite-svngit-migration,netarchivesuite/netarchivesuite-svngit-migration,netarchivesuite/netarchivesuite-svngit-migration