implement an admin dashboard with sidekiq checking
Merge branch 'master' into admin-dashboard
Merge branch 'master' into admin-dashboard
move sidekiq dashboard link to right of page
Merge branch 'master' into admin-dashboard

Conflicts:
	Gemfile
Merge branch 'master' into admin-dashboard
fix build
Add pghero
split health checks off into separate page
Merge branch 'master' into admin-dashboard

Conflicts:
	Gemfile
move Sidekiq::Web into AdminConstraint block
move dashboard links into a sidebar
split health checks off into separate page
Merge branch 'master' into admin-dashboard

Conflicts:
	Gemfile
Merge branch 'admin-dashboard' of github.com:thomas-mcdonald/qa into admin-dashboard
Merge branch 'master' into admin-dashboard
require sidekiq/api at top of sidekiq rake file
add links to management pages in sidebar
Fix Sidekiq test

Sidekiq::Workers only returns currently active workers.
Sidekiq::ProcessSet returns active (also waiting) processes
rename AdminDashboardProblems -> AdminDashboard