HDFS-6236: reintroduce ACL bit in FsPermission
HDFS-6236: use ACL bit in CLI commands
HDFS-6326: correct getfacl sticky bit handling
HDFS-6326: minor cleanup
HDFS-6236: set ACL bit on outbound FileStatus objects
HDFS-6326: CLI corrections
HDFS-6326: correct a few more tests
HDFS-6326: javadoc
Merge branch 'trunk' into HDFS-6326
HDFS-6326: roll back to trunk version
HDFS-6326: more defensive exception handling for getAclStatus call in ls
Merge branch 'trunk' into HDFS-6326
HDFS-6326: third approach- ACL bit not visible to client except by calling FsPermission#getAclBit
Merge branch 'trunk' into HDFS-6326
HDFS-6326: clean up unneeded code
HDFS-6326: javadoc cleanup
HDFS-6326: minor cleanup
HDFS-6326: remove unneeded InterfaceStability annotation
HDFS-6326: correct alignment of lines with ACLs in ls output.
HDFS-6326: correct ACL bit checks