[ticket/12533] Make <a> use all the notification item size

Changed padding CSS to the notifications' `<li>` and it's
`<a>` (immediate child) so that the `<a>` block uses all
 it's container width and height.

To compensate that, I added the padding that was in the
`<li>` to the `<a>`

PHPBB3-12533
[ticket/12533] Make <a> use all the "see all" "button"

Changed the CSS so that the `<a>` of the notifications
list for the "see all" uses all the container.

PHPBB3-12533
[ticket/12547] Rename jquery.js to jquery.min.js in assets directory

phpBB uses the minified version of jQuery hence the rename.

PHPBB3-12547
[ticket/12433] Use a different message when nesting of quotes is not allowed

PHPBB3-12433
[ticket/11163] Add ext/index.htm

PHPBB3-11163
Merge pull request #2464 from nickvergessen/ticket/11163

[ticket/11163] Add ext/index.htm

* nickvergessen/ticket/11163:
  [ticket/11163] Add ext/index.htm
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/11163] Add ext/index.htm
Merge pull request #2463 from nickvergessen/ticket/12433

[ticket/12433] Use a different message when nesting of quotes is not allowed

* nickvergessen/ticket/12433:
  [ticket/12433] Use a different message when nesting of quotes is not allowed
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12433] Use a different message when nesting of quotes is not allowed
[ticket/12551] Float breadcrumbs to the right in RTL languages.

PHPBB3-12551
[ticket/12549] Hide topic/forum list <dfn> tags in RTL languages.

PHPBB3-12549
[ticket/12550] Prevent last post column from jumping to second line in RTL.

PHPBB3-12550
[ticket/12555] Allow to set canonical URLs to avoid duplicate content

PHPBB3-12555
[ticket/12555] Add canonical URl for memberlist mode=viewprofile

Avoids duplicate content of:
* memberlist.php?mode=viewprofile&u=user_id
* memberlist.php?mode=viewprofile&un=username

PHPBB3-12555
[ticket/12555] Add canonical URL for viewforum

Avoids duplicate content of:
* viewforum.php?f=forum_id
* viewforum.php?f=forum_id&start=0

PHPBB3-12555
[ticket/12555] Add canonical URL for viewtopic

Avoids duplicate content of:
* viewtopic.php?t=topic_id
* viewtopic.php?f=forum_id&t=topic_id
* viewtopic.php?f=forum_id&t=topic_id&hilit=highlight_string
* viewtopic.php?f=forum_id&t=topic_id&view=unread
* viewtopic.php?f=forum_id&p=post_id
* viewtopic.php?f=forum_id&t=topic_id&start=0

PHPBB3-12555
[task/sami] Add sami/sami as a composer development dependency.

PHPBB3-12495
[task/sami] Replace phpdoctor with sami.

PHPBB3-12495
Merge branch 'task/sami' into task/sami-ascraeus

* task/sami:
  [task/sami] Replace phpdoctor with sami.
  [task/sami] Add sami/sami as a composer development dependency.

Conflicts:
	phpBB/composer.json
	phpBB/composer.lock
Merge remote-tracking branch 'brunoais/ticket/PHPBB3-12533' into develop-ascraeus

* brunoais/ticket/PHPBB3-12533:
  [ticket/12533] Make <a> use all the "see all" "button"
  [ticket/12533] Make <a> use all the notification item size