3.0.3

Fixed

• Use progressbar when scaffolding more then 3 asset-files
• FIx a regression for task-specific scripts. (Fixes #31)
• Make sure, that task-specific scripts are run. (Fixes #31)
• Add a notification before starting a db dump (Fixes #30 and #33)
• If no unstable update is available, try the stable branch (Fixes #34)