+2013-12-08 Daigo Moriwaki <daigo at debian dot org>
+
+ * [shogi-server]
+ - shogi-server/shogi_server/pairing.rb:
+ - Modified comment for LeastDiff match.
+ - Changed log messages and levels.
+
+2013-12-07 Daigo Moriwaki <daigo at debian dot org>
+
+ * [shogi-server]
+ - shogi_server/pairing.rb, player.rb:
+ Simplify estimated rate of unrated players (less memory).
+ - Enhanced syntax of Floodgate time configuration file.
+ Now it supports "set sacrifice <player_id>"; it sets a
+ sacrificed player for a specific Floodgate game.
+ ex. set sacrifice gps500+e293220e3f8a3e59f79f6b0efffaa931
+
+2013-12-05 Daigo Moriwaki <daigo at debian dot org>
+
+ * [shogi-server]
+ - Added a new pairing method, ShogiServer::ExcludeUnratedPlayers,
+ which filters out unrated players.
+ - Enhanced syntax of Floodgate time configuration file.
+ Now it supports "set pairing_factory <function_name>"; it sets a
+ factory function name generating a pairing method which will be
+ used in a specific Floodgate game.
+ ex. set pairing_factory floodgate_zyunisen
+
+2013-11-24 Daigo Moriwaki <daigo at debian dot org>
+
+ * [shogi-server]
+ - shogi_server/league/floodgate.rb: Improved robustness against
+ empty file under ruby 1.9.3p194
+ - shogi-server:
+ - Previously, reloading in daemon mode failed on
+ ruby 1.9.3p194. This issue has been fixed.
+ - Listen on only IPv4 explicitly. Under ruby 1.9.3p194, without
+ any bind addresses, ruby attempts to listen on both "0.0.0.0"
+ and "::". Specifying "::" on Linux leads to listen on both IPv4
+ and IPv6, which results in a warning message saying "Address
+ already in use - bind(2)".
+ * [mk_game_results]
+ - Fixed for reading Japanese comments under ruby1.9.3p194.
+ * mk_rate-from-grep, mk_rate-grep:
+ - Removed files that are no longer used.
+
+2013-11-23 Daigo Moriwaki <daigo at debian dot org>
+
+ * [mk_rate]
+ - gsl library may be provided as a gem
+ - Now duplicated inputs are checked and skipped.
+ * test/TC_floodgate.rb
+ - Improved randomness check so that it works on Ruby 2.0.0 as well
+
+2013-11-04 Daigo Moriwaki <daigo at debian dot org>
+
+ * [mk_rate]
+ - Added a new option, --ignore, which is imported from
+ mk_rate-from-grep.
+ * [mk_game_results]
+ - Flush after each output line.
+ * Rleased: Revision "20131104"
+
+2013-09-08 Daigo Moriwaki <daigo at debian dot org>
+
+ * [shogi-server]
+ - shogi_server/{game,time_clock}.rb:
+ When StopWatchClock is used, "Time_Unit:" of starting messages
+ in CSA protocol supplies "1min".
+
+2013-04-07 Daigo Moriwaki <daigo at debian dot org>
+
+ * [shogi-server]
+ - shogi_server/{game,time_clock}.rb:
+ Adds variations of thinking time calculation: ChessClock
+ (current) and StopWatchClock (new).
+ StopWatchClock, which is usually used at official games of human
+ professional players, is a clock where thiking time less than a
+ miniute is regarded as zero.
+ To select StopWatchClock, use a special game name with "060"
+ byoyomi time. ex. "gamename_1500_060".
+
+2013-03-31 Daigo Moriwaki <daigo at debian dot org>
+
+ * [shogi-server]
+ - %%FORK command: %%FORK <source_game> [<new_buoy_game>] [<nth-move>]
+ The new_buoy_game parameter is now optional. If it is not
+ supplied, Shogi-server generates a new buoy game name from
+ source_game.
+ - command.rb: More elaborate error messages for the %%GAME command.
+
+2013-03-20 Daigo Moriwaki <daigo at debian dot org>
+
+ * [shogi-server]
+ - New pairing algorithm: ShogiServer::Pairing::LeastDiff
+ This pairing algorithm aims to minimize the total differences of
+ matching players' rates. It also includes penalyties when a match
+ is same as the previous one or a match is between human players.
+ It is based on a discussion with Yamashita-san on
+ http://www.sgtpepper.net/kaneko/diary/20120511.html.
+