Raise version to v0.5.0

- Add fixed\_elements relationship to element serializer [\#14](#14) ([tvdeyen](https://github.com/tvdeyen))
- Rename element\_type into name [\#13](#13) ([tvdeyen](https://github.com/tvdeyen))
- Only include errors mixin in production mode [\#12](#12) ([tvdeyen](https://github.com/tvdeyen))

lib/alchemy/json_api/version.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 module Alchemy
   module JsonApi
-    VERSION = "0.4.0"
+    VERSION = "0.5.0"
   end
 end