HDFS-5065. TestSymlinkHdfsDisable fails on Windows. Contributed by Ivan Mitic.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1512870 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9802. Support Snappy codec on Windows. Contributed by Chris Nauroth.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1512872 13f79535-47bb-0310-9956-ffa450edef68