[ticket/11442] Use correct button class for ajaxified confirm_box

In commit 001572f the HTML code for the ajaxified confirm_box was moved
from overall_footer.html to confirm_body.html. While copying, the CSS
class of the "Yes" button was changed from button1 to button2. Due to the
fact that the phpbb.confirm() method uses the class button1 to check if
"Yes" was clicked, this broke the ajaxified confirm box in the ACP. With
this small patch the confirm boxes in the ACP should work properly again.

PHPBB3-11442
[ticket/11435] Fit comment into 80 columns and link to php manual.

PHPBB3-11435
[ticket/11144] Add missing {FORUM_NAME} variable

The template variable {FORUM_NAME} was missing from
the login page of a password protected forum

PHPBB3-11144
[ticket/11144] Add missing {FORUM_NAME} variable

Replace spaces with tabs

PHPBB3-11144
Merge remote-tracking branch 'MGaetan89/ticket/11144' into develop-olympus

* MGaetan89/ticket/11144:
  [ticket/11144] Add missing {FORUM_NAME} variable
  [ticket/11144] Add missing {FORUM_NAME} variable
Merge branch 'develop-olympus' into develop

* develop-olympus:
  [ticket/11144] Add missing {FORUM_NAME} variable
  [ticket/11144] Add missing {FORUM_NAME} variable

Conflicts:
	phpBB/download/file.php
	phpBB/styles/prosilver/template/login_forum.html
Merge remote-tracking branch 'p-push/ticket/11435' into develop

* p-push/ticket/11435:
  [ticket/11435] Fit comment into 80 columns and link to php manual.
Merge PR #1375 branch 'marc1706/ticket/11442' into develop

# By marc1706
# Via marc1706
* marc1706/ticket/11442:
  [ticket/11442] Use correct button class for ajaxified confirm_box