Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56620
Avoid bogus access log entries when pausing the NIO HTTP connector.
Ensure that any requests partially read before the connector is paused are logged in the access log with the correct start time.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1602865 13f79535-47bb-0310-9956-ffa450edef68