[ticket/11563] Fix subPanels()

Fix subPanels() code
Modernize subPanels() with jQuery
Use HTML5 data attributes instead of including JS

PHPBB3-11563
[ticket/11563] Remove unused JS variables

Remove unused JS variables from posting_buttons

PHPBB3-11563
[ticket/11563] Dynamically generate panels list

PHPBB3-11563
[ticket/11563] Remove duplicate code

PHPBB3-11563
[ticket/11112] Use https for user-visible links to phpbb.com

PHPBB3-11112
[ticket/11112] Do not change opensource.org link to https

PHPBB3-11112
[ticket/11684] Remove useless confirmation page after login and admin login

PHPBB3-11684
[ticket/11685] Remove logout confirmation page

PHPBB3-11685
[ticket/11674] Do not include vendor folder if there are no dependencies.

PHPBB3-11674
[ticket/11670] Consistency with logo: Replace "phpBB(tm)" with "phpBB(R)".

PHPBB3-11670
Merge remote-tracking branch 'github-bantu/ticket/11670' into prep-release-3.0.12

* github-bantu/ticket/11670:
  [ticket/11670] Consistency with logo: Replace "phpBB(tm)" with "phpBB(R)".
Merge branch 'prep-release-3.0.12' into develop-olympus

* prep-release-3.0.12:
  [ticket/11670] Consistency with logo: Replace "phpBB(tm)" with "phpBB(R)".
Merge branch 'develop-olympus' into develop

* develop-olympus:
  [ticket/11670] Consistency with logo: Replace "phpBB(tm)" with "phpBB(R)".
[ticket/11687] Add assets_version to phpbb_config

PHPBB3-11687
Merge remote-tracking branch 'github-bantu/ticket/11674' into prep-release-3.0.12

* github-bantu/ticket/11674:
  [ticket/11674] Do not include vendor folder if there are no dependencies.
Merge branch 'prep-release-3.0.12' into develop-olympus

* prep-release-3.0.12:
  [ticket/11674] Do not include vendor folder if there are no dependencies.
Merge branch 'develop-olympus' into develop

* develop-olympus:
  [ticket/11674] Do not include vendor folder if there are no dependencies.
Merge remote-tracking branch 'github-marc1706/ticket/11112' into prep-release-3.0.12

* github-marc1706/ticket/11112:
  [ticket/11112] Do not change opensource.org link to https
  [ticket/11112] Use https for user-visible links to phpbb.com
Merge pull request #1548 from cyberalien/ticket/11687

[ticket/11687] Add assets_version to phpbb_config
Merge branch 'prep-release-3.0.12' into develop-olympus

* prep-release-3.0.12:
  [ticket/11112] Do not change opensource.org link to https
  [ticket/11112] Use https for user-visible links to phpbb.com