NUTCH-1766

git-svn-id: https://svn.apache.org/repos/asf/nutch/trunk@1593901 13f79535-47bb-0310-9956-ffa450edef68
NUTCH-1613 Timeouts in protocol-httpclient when crawling same host with >2 threads

git-svn-id: https://svn.apache.org/repos/asf/nutch/trunk@1593951 13f79535-47bb-0310-9956-ffa450edef68