[feature/editor-code-tabs] Correctly count indentation on first line

Correctly count indentation on first line of code tag

PHPBB3-11557
[feature/editor-code-tabs] Apply code editor to everything

Move code editor from prosilver to assets
Apply code editor to subsilver2
Apply code editor to ACP elements where bbcode is allowed

PHPBB3-11557
[feature/editor-code-tabs] Check for browser support in function

Check for browser support and valid textarea in function instead of
before applying function.

PHPBB3-11557
[feature/editor-code-tabs] Make inTag function reusable

Change inTag function to reusable JS function that can check
for any BBCode

PHPBB3-11557
[ticket/11564] Notifications popup fixes

Fix width issue with vertical scrollbar
Correctly absolutely position it above link, allowing
style authors to move notifications link around in style
Fix IE7 positioning

PHPBB3-11564
[ticket/11564] Missing new line in tweaks.css

Missing new line at the end of tweaks.css

PHPBB3-11564
[ticket/11583] Allow FULLTEXT indexes on InnoDB when on MySQL 5.6.4 or higher.

PHPBB3-11583
[ticket/11583] Use a new lang key instead of giving the old one a new meaning.

PHPBB3-11583
[ticket/11587] Pass legend and teampage settings to group_create()

Without passing those values, the group is removed from the teampage and
the legend while submitting the edit form on the ucp groups manage page.

PHPBB3-11587
[ticket/11538] Add admin as admins leader and moderator in memberlist_test

Removing the admin user from the admin and moderator group in memberlist_test
potentially breaks other tests, i.e. the ucp groups test.

PHPBB3-11538
Merge remote-tracking branch 'marc1706/ticket/11538' into develop

* marc1706/ticket/11538:
  [ticket/11538] Add admin as admins leader and moderator in memberlist_test
Merge branch 'develop' of https://github.com/phpbb/phpbb3 into ticket/11587
[ticket/11587] Add functional tests for group teampage settings

The group_legend and group_teampage settings, which are needed for the
teampage, are tested with these newly added functional tests.
Duplicate code has been reduced as much as possible.

PHPBB3-11587
Merge remote-tracking branch 'bantu/ticket/11583' into develop-olympus

# By Andreas Fischer
# Via Andreas Fischer
* bantu/ticket/11583:
  [ticket/11583] Use a new lang key instead of giving the old one a new meaning.
  [ticket/11583] Allow FULLTEXT indexes on InnoDB when on MySQL 5.6.4 or higher.
Merge branch 'develop-olympus' into develop

# By Andreas Fischer
# Via Andreas Fischer (1) and Dhruv (1)
* develop-olympus:
  [ticket/11583] Use a new lang key instead of giving the old one a new meaning.
  [ticket/11583] Allow FULLTEXT indexes on InnoDB when on MySQL 5.6.4 or higher.

Conflicts:
	phpBB/includes/search/fulltext_mysql.php
	phpBB/language/en/acp/search.php
[ticket/11588] Also use version.phpbb.com in install_update.php.

PHPBB3-11588
Merge remote-tracking branch 'remotes/bantu/ticket/11588' into develop-olympus

# By Andreas Fischer
# Via Andreas Fischer
* remotes/bantu/ticket/11588:
  [ticket/11588] Also use version.phpbb.com in install_update.php.
Merge branch 'develop-olympus' into develop

# By Andreas Fischer
# Via Andreas Fischer (1) and Nathaniel Guse (1)
* develop-olympus:
  [ticket/11588] Also use version.phpbb.com in install_update.php.
Merge remote-tracking branch 'remotes/cyberalien/ticket/11564' into develop

# By Vjacheslav Trushkin
# Via Vjacheslav Trushkin
* remotes/cyberalien/ticket/11564:
  [ticket/11564] Missing new line in tweaks.css
  [ticket/11564] Notifications popup fixes
Merge remote-tracking branch 'remotes/cyberalien/feature/editor-code-tabs' into develop

# By Vjacheslav Trushkin
# Via Vjacheslav Trushkin
* remotes/cyberalien/feature/editor-code-tabs:
  [feature/editor-code-tabs] Make inTag function reusable
  [feature/editor-code-tabs] Check for browser support in function
  [feature/editor-code-tabs] Apply code editor to everything
  [feature/editor-code-tabs] Correctly count indentation on first line