NUTCH-1745 Upgraded to ElasticSearch 1.1.0

git-svn-id: https://svn.apache.org/repos/asf/nutch/trunk@1584722 13f79535-47bb-0310-9956-ffa450edef68
NUTCH-1735 code dedup fetcher queue redirects

git-svn-id: https://svn.apache.org/repos/asf/nutch/trunk@1585144 13f79535-47bb-0310-9956-ffa450edef68
NUTCH-1747 Use AtomicInteger as semaphore in Fetcher

git-svn-id: https://svn.apache.org/repos/asf/nutch/trunk@1585196 13f79535-47bb-0310-9956-ffa450edef68
NUTCH-1750 Improvement of Fetcher's reportStatus

git-svn-id: https://svn.apache.org/repos/asf/nutch/trunk@1585905 13f79535-47bb-0310-9956-ffa450edef68