Add tag for 3.3

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1616544 13f79535-47bb-0310-9956-ffa450edef68
NET-547 There is a lack of documentation regarding setControlKeepAliveTimeout

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1616552 13f79535-47bb-0310-9956-ffa450edef68
Added control character processing to TelnetClientExample


git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1616555 13f79535-47bb-0310-9956-ffa450edef68
Only create String once

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/trunk@1616556 13f79535-47bb-0310-9956-ffa450edef68