Perl's make_path should be mkpath in SLE 11, see BNC #801714
Logging more debugging info

- Previous logging was extended by adding Perl error messages
- Logging stderr output from backup script
Changes file and a new version
Less logging if not needed

- and removing "DEBUG: " that looks really bad
Merge pull request #8 from kobliha/Code-11-SP2

Some comments used for cleanup