[logback-dev] [qos-ch/logback] e92640: update copyright year to 2019

[Ceki Gulcu]

  Branch: refs/heads/master
  Home:   https://github.com/qos-ch/logback
  Commit: e926409e252198137a7c4f59c06937d0ef52e01a
      https://github.com/qos-ch/logback/commit/e926409e252198137a7c4f59c06937d0ef52e01a
  Author: Ceki Gulcu <ceki at qos.ch>
  Date:   2019-10-09 (Wed, 09 Oct 2019)

  Changed paths:
    M logback-site/src/site/pages/templates/footer.js

  Log Message:
  -----------
  update copyright year to 2019