add_gitignore.rb in crosstie-0.0.4

- old
+ new

@@ -2,10 +2,9 @@
 append_file ".gitignore", <<-EOF
 dump.rdb
 /config/database.yml
 /config/secrets.yml
 /config/ldap.yml
-/config/sidekiq.yml
 *.swp
 /coverage
 .DS_Store
 EOF