tasks #6674: Dropdown for comment order and display changes

Change-Id: I7d6546a286a706ac2ae303c6584fb851f0cea2ab
Merge commit 'refs/changes/90/2290/5' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  tasks #6674: Dropdown for comment order and display changes

Change-Id: I968867e5312b674820955f4c9d40650cfefb3c15
This is Tuleap 6.12.99.66

Change-Id: Ie6b77745eafeebe19e2d0f3bc3b62f73493455a1