[ticket/11574] Try to load updated service.yml before the default one

PHPBB3-11574
[ticket/11574] Find language files in update/new before throwing an error

PHPBB3-11574
[ticket/11574] Require new files in database_update.php and add a class loader

PHPBB3-11574
[ticket/11574] Require new files in install/index.php and add a class loader

PHPBB3-11574
[ticket/11574] Load new language files whenever possible

PHPBB3-11574
[ticket/11574] Use request object rather then request_var function

PHPBB3-11574
[ticket/11574] Add correct language parameter to return links

PHPBB3-11574
[ticket/11574] Create phpbb_log object before using it.

PHPBB3-11574
[ticket/11574] Include vendor into update packages

PHPBB3-11574
[ticket/11574] Use log object instead of old function

PHPBB3-11574
[ticket/11574] Only fall back to install/update versions, when IN_INSTALL ;)

PHPBB3-11574
[ticket/11574] Include normalizer so it loads form the correct directory

PHPBB3-11574
[ticket/11574] Use alternate DI config file for updater

PHPBB3-11574
[ticket/11574] Make install language filename less crazy

PHPBB3-11574
[ticket/11574] Fix various path issues in the updater

PHPBB3-11574
[ticket/11574] Fix table prefix in database updater

PHPBB3-11574
[ticket/11574] Add trailing slash for consistency

PHPBB3-11574
Merge pull request #7 from igorw/ticket/11574

[ticket/11574] Fix various path issues in the updater
Merge remote-tracking branch 'upstream/develop' into ticket/11574

* upstream/develop: (575 commits)
  [ticket/11702] Fix forum_posts left over for link-click counts in viewforum.php
  [ticket/11696] Move file to new directory
  [ticket/11696] Rename constructor to __construct()
  [ticket/11696] Remove manual loading of db_tools in extension controller test
  [ticket/11696] Rename db_tools.php so it can be autoloaded
  [ticket/11698] Moving all autoloadable files to phpbb/
  [ticket/11694] Do not locate assets with root path
  [ticket/11692] Don't update search_type in dev migration if already appended
  [ticket/11675] Fix template loop
  [ticket/11690] Old module class names may get autoloaded by class_exists
  [ticket/9649] Display information on index for moderators on unapproved posts
  [ticket/10999] Fix assets_version in ACP
  [prep-release-3.0.12] More changelog items for the 3.0.12 release.
  [ticket/11687] Add assets_version to phpbb_config
  [ticket/11686] Not checking for phpBB Debug errors on functional tests
  [ticket/11670] Consistency with logo: Replace "phpBB(tm)" with "phpBB(R)".
  [ticket/11674] Do not include vendor folder if there are no dependencies.
  [ticket/11685] Remove logout confirmation page
  [ticket/11684] Remove useless confirmation page after login and admin login
  [ticket/9657] Define user before injecting
  ...

Conflicts:
	phpBB/includes/functions_container.php
	phpBB/install/database_update.php
	phpBB/install/index.php
Merge remote-tracking branch 'igorw/ticket/11574' into ticket/11574

* igorw/ticket/11574: (575 commits)
  [ticket/11702] Fix forum_posts left over for link-click counts in viewforum.php
  [ticket/11696] Move file to new directory
  [ticket/11696] Rename constructor to __construct()
  [ticket/11696] Remove manual loading of db_tools in extension controller test
  [ticket/11696] Rename db_tools.php so it can be autoloaded
  [ticket/11698] Moving all autoloadable files to phpbb/
  [ticket/11694] Do not locate assets with root path
  [ticket/11692] Don't update search_type in dev migration if already appended
  [ticket/11675] Fix template loop
  [ticket/11690] Old module class names may get autoloaded by class_exists
  [ticket/9649] Display information on index for moderators on unapproved posts
  [ticket/10999] Fix assets_version in ACP
  [prep-release-3.0.12] More changelog items for the 3.0.12 release.
  [ticket/11687] Add assets_version to phpbb_config
  [ticket/11686] Not checking for phpBB Debug errors on functional tests
  [ticket/11670] Consistency with logo: Replace "phpBB(tm)" with "phpBB(R)".
  [ticket/11674] Do not include vendor folder if there are no dependencies.
  [ticket/11685] Remove logout confirmation page
  [ticket/11684] Remove useless confirmation page after login and admin login
  [ticket/9657] Define user before injecting
  ...