Merge changes from topic "am-851f19c8d7d34bb48accd48868aae501-qt-dev" into qt-dev

* changes:
  Remove broken test testRfc6724Sort
  Add Rfc6724 style sort for DnsResolver and fix potential bug
tree: 789e376838d4736bfc200eedcf6cc93f730d98d7
  1. core/
  2. services/
  3. tests/