rails 5.2 upgrade

[Mirv]

Halt on false callbacks ...

https://blog.bigbinary.com/2016/02/13/rails-5-does-not-halt-callback-chain-when-false-is-returned.html

throw an error no longer ends - so not a real error message - some gems might hate this ...

[Mirv]

mirv:~/workspace/basicB (apimode) $ server
=> Booting Puma
=> Rails 5.2.0 application starting in development 
=> Run `rails server -h` for more startup options
Exiting
/home/ubuntu/workspace/basicB/config/initializers/new_framework_defaults.rb:23:in `<top (required)>': undefined method `halt_callback_chains_on_return_false=' for ActiveSupport:Module (NoMethodError)