4.3

- auditing
  + track template, needle, job changes
- needle management
  + list of needles in admin interface
  + removal of unused needles
- updated dump_templates script
  + allow dumping individual groups, products, etc..
- improved UI branding
  + branding is now loaded from 'branding/(brandname)'
    when missing 'branding/plain' is used as fallback
- changed lock and mm APIs
- automatic deployment helpers
  + updated Docker files
  + generating API keys and admin user
- fixed and enhanced maintenance GRU tasks
- gentle perlcritic compliant code
- numerous other fixes

4.2

- background GRU tasks
- asset generation
- preforking and DBus IPC
- ISO download on job schedule (via GRU task)
- tidyfied code
- many bugfixes, many new bugs

Revert "ignore stale qemu.pid files" and give isotovideo more time

to kill qemu - we'll see

remove the paragraph about OPENQA_HOSTNAME completely and fix asciidoc