[ticket/12615] Fixed inproper clearing of .topic-actions

PHPBB3-12615
[ticket/12639] Delete entry in admin-log leads to mysql-error

PHPBB3-12639
[ticket/12639] Add a test case with an empty keywords list

PHPBB3-12639
[ticket/12639] Update tests to use a dataProvider

PHPBB3-12639
[ticket/12639] Fix tests on postgres

PHPBB3-12639
[ticket/12639] Order the results correctly in the test

PHPBB3-12639
[ticket/12640] Preserve the active tab when previewing in posting page.

PHPBB3-12640
[ticket/12641] Use jQuery's trim() method. IE8 does not support the native one

PHPBB3-12641
Merge pull request #2529 from prototech/ticket/12641

[ticket/12641] Use jQuery's trim() method. IE8 does not support the native one.

* prototech/ticket/12641:
  [ticket/12641] Use jQuery's trim() method. IE8 does not support the native one
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12641] Use jQuery's trim() method. IE8 does not support the native one
[ticket/12639] Remove old commented tests

PHPBB3-12639
[ticket/12639] Use assertSame

PHPBB3-12639
[ticket/12602] Add files to print the cron list and test files.

PHPBB3-12602
[ticket/12541] Activate attachments tab when files are dropped into textarea

PHPBB3-12541
[ticket/12566] "Private messages" should be "Send pivate message"

PHPBB3-12566
[ticket/12565] Empty anchors introduce white-space in IE11

PHPBB3-12565
[ticket/12521] Fix MCP merge topics row overflow

PHPBB3-12521
[ticket/12602] Correction of the output message for the cron list

PHPBB3-12602
[ticket/12602] Add function get_tasks.

PHPBB3-12602
[ticket/12602] Cleanup tests

PHPBB3-12602