add cache_indexer, not integrated now, see src/cache_indexer/readme.md

ebin/dhtcrawler.app

@@ -1,15 +1,16 @@
 {application,dhtcrawler,
              [{description,"A DHT crawler to index magnet hash to torrent"},
-              {vsn,"356a1c0"},
+              {vsn,"539dd91"},
               {registered,[dht_crawler_sup]},
               {applications,[kernel,stdlib,crypto,public_key,ssl,inets,bson,
                              mongodb]},
               {mod,{crawler_app,[]}},
               {modules,[bt_conn,bt_message,config,crawler_app,crawler_http,
                         crawler_stats,crawler_sup,db_daterange,db_frontend,
-                        db_hash,db_loc_torrent,db_store_mongo,db_system,
-                        dht_monitor,hash_reader,hash_reader_stats,
-                        hash_reader_sup,http_cache,http_handler,loc_torrent,
+                        db_hash,db_hash_index,db_loc_torrent,db_store_mongo,
+                        db_system,dht_monitor,hash_reader,hash_reader_stats,
+                        hash_reader_sup,http_cache,http_handler,index_builder,
+                        index_download,index_file,loc_torrent,
                         loc_torrent_cache,loc_torrent_sup,name_seger,rmmseg,
                         string_split,time_util,tor_builder,tor_download,
                         tor_download_stats,tor_location,tor_location_reader,