Depreciation warnings with Rails 5

[renchap]

react-rails is using before_filter, which is deprecated in Rails 5 and will disappear in 5.1 :

DEPRECATION WARNING: before_filter is deprecated and will be removed in Rails 5.1. Use before_action instead. (called from block in <module:ControllerLifecycle> at gems/react-rails-290765a1ac14/lib/react/rails/controller_lifecycle.rb:8)
DEPRECATION WARNING: after_filter is deprecated and will be removed in Rails 5.1. Use after_action instead. (called from block in <module:ControllerLifecycle> at gems/react-rails-290765a1ac14/lib/react/rails/controller_lifecycle.rb:9)

before_filter has been renamed to before_action in Rails 4. I dont know what your policy is regarding deprecations like this on not-yet released versions, but I think it might be worth it to switch to the new name and have a compatibility alias for Rails 3.2.

[krzysiek1507]

@renchap there is a comment about it https://github.com/reactjs/react-rails/blob/master/lib/react/rails/controller_lifecycle.rb#L7