add backup job

config/config.yml

@@ -3,6 +3,7 @@ defaults: &defaults
   store_ip: 'redmine.rulingcom.com:3001'
   orbit: 'Orbit'
   ruling_digital: 'RulingDigital'
+  backup_keep_for_days: 30
   
 development:
   <<: *defaults

config/resque_schedule.yml

@@ -4,6 +4,12 @@ dashboard_counter_cache:
   args:
   description: DashboardCounterCache
 
+backup_server:
+  cron: 0 0 2 * * *
+  class: BackupServer
+  args:
+  description: BackupServer and remove old backups
+
 update_tag_cloud:
   cron: 0 0 [0,12] * * *
   class: UpdateTagCloud