Allow create translations without length validation

We have changed validate_translation method on Globalize concern.
The objective is skip length validations when locale is distinct to
default_locale.

First we force apply :length validations when locale is equal to
default_locale. After we reject :length from options and apply rest
of validation options only when we have more than 1 options.

Ej: options = { length: "maximum: 10" }
When reject :length option in this example, options is equal to a
empty hash and we cant execute validations.

app/models/concerns/globalizable.rb

@@ -35,8 +35,20 @@ module Globalizable
   class_methods do
     def validates_translation(method, options = {})
       validates(method, options.merge(if: lambda { |resource| resource.translations.blank? }))
+      if options.include?(:length)
+        lenght_validate = { length: options[:length] }
+        translation_class.instance_eval do
+          validates method, lenght_validate.merge(if: lambda { |translation| translation.locale == I18n.default_locale })
+        end
+        if options.count > 1
+          translation_class.instance_eval do
+            validates method, options.reject { |key| key == :length }
+          end
+        end
+      else
         translation_class.instance_eval { validates method, options }
       end
+    end
 
     def translation_class_delegate(method)
       translation_class.instance_eval { delegate method, to: :globalized_model }