timeout is an int

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1519103 13f79535-47bb-0310-9956-ffa450edef68
Align the setting of the keep-alive timeout with the NIO implementation

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1519106 13f79535-47bb-0310-9956-ffa450edef68
Align further with NIO. Simplify the timeout code.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1519109 13f79535-47bb-0310-9956-ffa450edef68