• Added EXPERIMENTAL support for job sequences.
  
• Added EXPERIMENTAL sequence option to enqueue method in Minion, Minion::Backend and Minion::Backend::Pg.
  
• Added EXPERIMENTAL sequences option to list_jobs method in Minion::Backend and Minion::Backend::Pg.
  
• Added next and previous fields to list_jobs method in Minion::Backend::Pg.
  
• Added -Q option to job command.
  
• Improved admin ui to allow navigating job sequences.