HADOOP-9414.  Refactor out FSLinkResolver and relevant helper methods.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1498720 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9676.  Make maximum RPC buffer size configurable (Colin Patrick McCabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1498737 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9678. TestRPC#testStopsAllThreads intermittently fails on Windows. Contributed by Ivan Mitic.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1498786 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4943. WebHdfsFileSystem does not work when original file path has encoded chars.  Contributed by Jerry He


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1498962 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch upstream/$:{upbranch}