Fixed class/module declaration.

app/models/store/provider/db.rb

@@ -1,7 +1,7 @@
 # Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
 
 class Store
-  class Provider
+  module Provider
     class DB < ApplicationModel
       self.table_name = 'store_provider_dbs'
 

app/models/store/provider/file.rb

@@ -1,8 +1,8 @@
 # Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
 
 class Store
-  class Provider
-    class File
+  module Provider
+    module File
 
       def self.add(data, sha)
         write_to_fs(data, sha)