HADOOP-10612. NFS failed to refresh the user group id mapping table. Contributed by Brandon Li

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1596075 13f79535-47bb-0310-9956-ffa450edef68
Test cleanup. testExistingStorageTypeIsRespected still fails.
Add .classpath, .project and .settings to svn:ignore.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1596097 13f79535-47bb-0310-9956-ffa450edef68
Increase wait for block replication to make test pass.
Merge remote-tracking branch 'apache/trunk' into archival