Scan/Discovery - better support for SEAGATE and WD disks
fix
Merge pull request #793 from andrzej-jankowski/develop

Scan - support for postprocessing plugins
Merge pull request #792 from andrzej-jankowski/mac_validation_fix

mac address validation - fix
Merge pull request #791 from andrzej-jankowski/inquiry_data_fixes

Scan/Discovery - better support for SEAGATE and WD disks
Usability for ralph scan command
Merge pull request #794 from vi4m/ui_fixes

Usability for ralph scan command