Issue #2254017 by eshta: Added styling and usability improvements to default lift controls dialog.
Issue #2256361 by eshta: Only show context and stability reports for campaigns with context selected.
Issue #2257699 by katbailey: Support the new fixed targeting rules
Issue #2258897 by eshta: Add ability to configure confidence measure used in reporting.
Issue #2222307 by m1r1k: Add admin_toolbar Acquia Lift link support
Issue #2262227 by eshta: Utilize preview flag on executors.
Initial attempt at 8.x