Disable log buffering in rails5 migration guide
Disable log buffering in rails5 migration guide

This behavior has been part of this gem for rails v2, v3 and v4. Thus it should be added when migrating to rails 5 in order to keep log buffering disabled.

See https://devcenter.heroku.com/articles/logging#writing-to-your-log for more details.

Fixes #31
heroku/rails_stdout_logging,heroku/rails_stdout_logging,heroku/rails_stdout_logging