add config property to control whether game records are saved
update GtpEngine to check saveRecords flag from configuration
upgrade log4j2 to beta8
fatal is not a valid log4j2 log level
move gameId thread context setting from GameContext to dkbot since otherwise a thread that handles multiple GameContext instances would always identify only the first one
don't need to return whole context map just to retrieve gameId value
store board size in thread-local storage
refactor Convert.stringToResult to implement Result.valueOf
further parsing tweaks for Result and Result.Status
yet more tweaks for Result and Result.Status
cleanup Result.toString()
mark locale-insensitive strings
mark locale-insensitive strings
get rid of redundant status param to Result constructor for the WON case
remove useless cases from result status text parsing
give Result.Status.WON a text representation instead of empty string
fixed typo in javadoc comment
revise game signature calculation