BackupPC-XS 0.58 released
A few minor changes; upgrading to this version from 0.57 isn't really necessary.
- on inflate error, first return any remaining bytes before returning the error.
- remove leading "./" even if ac->currentDir[] is not set; change mirrors a change in rsync-bpc and has no effect here since BackupPC::XS doesn't set ac->currentDir[].
- bpc_attrib_dirWrite() updates dir->digest with new digest.
- updated configure.sh with package name and current version