fix leak in dpl_vec_dup: source values were duplicated twice but only stored once (in the dup vector)
 in dir_lookup (used by vfs functions), first try to match directory names before file names, so that we can lookup entries that are subpaths of the directory path even if another file with the same name exists.
 rmdir NOTEMPTY check only supported server-side by posix backend, so do a check for other backends. Add the directory entry in CDMI list_bucket so that the behaviour is consistent with S3, and dir_is_empty function does the correct job.
 fix output of "." entry in dpl_readdir
Merge pull request #133 from scality/scality_svn

Scality svn