Start up the Job scheduler after all the other initializers have loaded.

We do this so that plugins can register scheduled jobs.

config/initializers/sidekiq.rb

@@ -23,8 +23,8 @@ if Sidekiq.server?
     end
   end
 
+  Rails.application.config.after_initialize do
     require 'scheduler/scheduler'
-
     manager = Scheduler::Manager.new
     Scheduler::Manager.discover_schedules.each do |schedule|
       manager.ensure_schedule!(schedule)
@@ -41,5 +41,6 @@ if Sidekiq.server?
       end
     end
   end
+end
 
 Sidekiq.logger.level = Logger::WARN