v1.2.0 release

Bug Fixes

• image: fix default image docker permissions (92fab44)
• image-message: adds error message to job output when image doesn't exists (f53abf0)
• images: add image build status to system log and show all builded images (0626eb1), closes #241
• images: fixed bug of not showing docker images (7c79080), closes #242
• readme: corrected sentence in README (aa76406)

Features

• config: demo mode added to config (40efd07)
• deploy: deploy commands must execute in extra job only if other jobs succeeded (closes #230) (3ff9b59)
• ordering: execute commands using correct priority order (89e5cf6)
• status: check git installation (closes #249) (d389d6d)