* 'develop' of https://github.com/phpbb/phpbb3: (480 commits)
[ticket/6723] Show info that message has been deleted before delivery
[ticket/11385] Fix issue with migration module tool not getting extension module info
[ticket/11386] Fix failing tests from constructor changes
[ticket/11386] Fix circular reference error & serialize error
[ticket/11386] Remove tests that check if finder cache is working
[ticket/11386] Forgot to get the migration classes
[ticket/11386] Update tests with new constructors for ext.manager/migrator
[ticket/11386] Use finder to find migration files
[ticket/11363] Fix to make get_module_infos get from all extensions
[ticket/11381] Make finder able to search in all available extensions
[ticket/11103] Revert whitespace changes
[ticket/11103] Few more minor language things
[ticket/11103] Don't call generate_board_url many times
[ticket/11103] Case time in queries as an int
[ticket/11103] Fix effectively installed check
[ticket/11103] Remove padding from notifications for now.
[ticket/11363] Fix a couple bugs and throw errors if the file not found
[ticket/11372] Migrator should only check if effectively installed if not
[ticket/11363] Load module info files for extensions too
[ticket/11103] Notifications Migration file
...
Conflicts:
phpBB/includes/functions_posting.php
phpBB/includes/mcp/mcp_queue.php
phpBB/includes/search/fulltext_mysql.php
phpBB/includes/search/fulltext_native.php
phpBB/includes/search/fulltext_postgres.php
phpBB/includes/search/fulltext_sphinx.php
phpBB/install/database_update.php
phpBB/styles/prosilver/template/ajax.js
Moved color related style elements to colours.css and other elements to
common.css
Also added an empty display for corners span.
Removed unwanted space in mcp_topic
Removed DS_Store
PHPBB-10734
