Fix: change env var for log dir

src/settings.liq

@@ -85,7 +85,7 @@ settings.log.stdout.set(true)
 settings.log.file.set(true)
 log_level = get_setting("3", "log_level", "AURA_ENGINE_CORE_LOG_LEVEL")
 settings.log.level.set(int_of_string(log_level))
-log_dir = get_setting("../logs", "log_dir", "AURA_ENGINE_LOG_DIR")
+log_dir = get_setting("../logs", "log_dir", "AURA_LOGS)
 log_file = "#{log_dir}/engine-core.log"
 settings.log.file.path.set(log_file)
 print "\tLogging to '#{log_file}' with log level #{log_level}"