- new configure option --enable-hires-clock (should be off by default)
+ improved logging logic
- new log-levels ddcLL* (None,Error,Warn,Info,Debug,Trace) a la Log::Log4perl
- new global log-level ddcLogLevel
- new global log-level-sensitive wrapper macros ddcLogTrace() etc.
- new ddcLog() function replaces concord_daemon_log() [with back-compatible wrapper]
+ moved Format(...) into ddcString
+ new variable-argument version vFormat(format, va_list)
+ new global lock for log access
