eval mistakenly resolved the module path

[dtaniwaki]

Hi

I found acts_as_list doesn't work well with enumerize gem 'https://github.com/twinslash/enumerize' because eval resolve incorrect module path.

In "lib/acts_as_list/active_record/acts/list.rb"

            include ActiveRecord::Acts::List::InstanceMethods

The module path can not resolved correctly in eval in some situations.
Could you just fix it like below?

            include ::ActiveRecord::Acts::List::InstanceMethods

[swanandp]

Done, thanks for reporting!