Apply empty attribute values when hydrating records
Bump version
Change file order at migration

Dir.glob lists files:

  app/models/user/item.rb
  app/models/user.rb

This commit:

  app/models/user.rb
  app/models/user/item.rb
Merge pull request #109 from Sixeight/patch/2

Change file order at migration
Fix bounds queries of clustered keys