Added sidekiq configuration

config/sidekiq.yml

@@ -0,0 +1,13 @@
+---
+:concurrency: 5
+:logfile: log/sidekiq.log
+preview:
+  :pidfile: /home/unicorn/sidekiq_preview.pid
+  :concurrency: 15
+  :queues:
+    - preview
+production:
+  :pidfile: /home/unicorn/sidekiq_production.pid
+  :concurrency: 15
+  :queues:
+    - production