Add delayed_job_args variable for Capistrano recipe to allow configur…

…ation of started workers (e.g. "-n 2 --max-priority 10")

lib/delayed/recipes.rb

@@ -13,19 +13,23 @@ def rails_env
       fetch(:rails_env, false) ? "RAILS_ENV=#{fetch(:rails_env)}" : ''
     end
 
+    def args
+      fetch(:delayed_job_args, "")
+    end
+
     desc "Stop the delayed_job process"
     task :stop, :roles => :app do
       run "cd #{current_path};#{rails_env} script/delayed_job stop"
     end
 
     desc "Start the delayed_job process"
     task :start, :roles => :app do
-      run "cd #{current_path};#{rails_env} script/delayed_job start"
+      run "cd #{current_path};#{rails_env} script/delayed_job start #{args}"
     end
 
     desc "Restart the delayed_job process"
     task :restart, :roles => :app do
-      run "cd #{current_path};#{rails_env} script/delayed_job restart"
+      run "cd #{current_path};#{rails_env} script/delayed_job restart #{args}"
     end
   end
 end