Async appender isn't used for logging subsystem

Please change configuration for logging substystem to use async appender.

Currently it uses directly FILE and CONSOLE appender.

            <root-logger>
                <level name="INFO"/>
                <handlers>
                    <handler name="CONSOLE"/>
                    <handler name="FILE"/>
                </handlers>
            </root-logger>

There is performance degradation when ASYNC is not used. Discovered during WS performance tests, one test is very verbose in server log.