Merge branch '4.2'

* 4.2:
  [Console] Fix auto-complete for ChoiceQuestion (multi-select answers)
  Translated form, security, validators resources into Belarusian (be)
  [WebProfilerBundle] Don't filter submitted IP values
  [Intl] Cleanup
  bumped Symfony version to 4.2.9
  updated VERSION for 4.2.8
  updated CHANGELOG for 4.2.8
  bumped Symfony version to 3.4.28
  updated VERSION for 3.4.27
  update CONTRIBUTORS for 3.4.27
  updated CHANGELOG for 3.4.27

Author: fabpot