hdup v2.0.3 bug

Hi,

it seems (at least in the new version 2.0.3) there is a problem
when using bzip for compression: hdup restore fails with reason "gzip:
stdin: not in gzip format".

Solution:
In function hdup_archive: change the `if' statements to `if', `else
if' and `else if' and put an `else' in front of the last
`g_strdup_printf' (which otherwise would always set .gz extension).


Secondly, hdup does not seem to include directory entries into the
archive; and I can't find a setting to change that behaviour.
Hence, when restoring, all directory information (permissions, owner
etc.) are missing and default to the user calling hdup (probably
root).


Third, great tool! Everything I expect from a backup program.
Though I find the names for the incremental backups a little
irritating (maybe full, update1, update2 would be more expressive -
but hey).

-gt