CHANGELOG;

  * https://github.com/threema-ch/threema-web/blob/master/CHANGELOG.md

  [feature] Add support for Threema Gatway push service (#1175)
  [bug] Fix file size limit check (#1179)
  [change] Upgrade many dependencies
  [feature] Show group reaction names on hover (#1164)
  [change] Upgrade dependencies

DIFF;

  * https://github.com/threema-ch/threema-web/compare/v2.5.0...v2.5.2

Q/A;

  * poudriere/testport OK for 12, 13 and 14;
  * while here, pet portlint;
  * updated WWW on Makefile to reflect the app's code repository;
  * fix a mix of b7f05445c00f and fb16dfecae4a6efa.