HDFS-5616: stub tests
HDFS-5616: make new stub tests fail
HDFS-5616: implement basic test cases
HDFS-5616: get it working for new files
HDFS-5616: now working for new sub-directories
HDFS-5616: implement test for intermediate dirs
HDFS-5616: add tests for file/symlink with auto-create.
HDFS-5616: rename a few tests
HDFS-5616: implement testDefaultAclNewFileWithMode
HDFS-5616: remove tests that will not be implemented within the scope of this patch
HDFS-5616: remove unused import
HDFS-5616: implement testDefaultAclNewDirWithMode, fix testDefaultAclNewFileWithMode
HDFS-5616: refactor behind AclStorage
HDFS-5616: remove unused import
HDFS-5616: refactor
HDFS-5616: refactor
HDFS-5616: add tests asserting that for a directory with only an access ACL, its children do not get a copy
HDFS-5616: add tests for default minimal ACL
HDFS-5616: correct bugs in edit log handling
HDFS-5616: fix bug with copying a minimal ACL defined in a default ACL