[ticket/13266] Enable twig dump function

PHPBB3-13266
[ticket/13357] Adds missing LOG_MOVED_TOPIC for 3.0.12 left-over entries

PHPBB3-13357
[ticket/13266] Merge pull request #3099 from Senky/ticket/13266

[ticket/13266] Enabling twig dump function if DEBUG is defined

* Senky/ticket/13266:
  [ticket/13266] Enable twig dump function

Conflicts:
	phpBB/phpbb/template/twig/twig.php

PHPBB3-13266
[ticket/11033] Update string to reflect real requirements

PHPBB3-11033
[ticket/12924] Make meta tags self-closing

PHPBB3-12924
[ticket/13266] Enable the debug extension in the development environment

PHPBB3-13266
[ticket/12567] wrap to top

PHPBB3-12567
[ticket/12924] Remove newlines at the EOF

PHPBB3-12924
[ticket/13368] Add $forum_data to viewforum_get_topic_ids_data event

PHPBB3-13368
[ticket/13319] Add missing table tags

PHPBB3-13319
[ticket/13368] Add @changed entry

PHPBB3-13368
[ticket/13312] Add event core.acp_email_send_before

PHPBB3-13312
[ticket/13312] Use empty for usernames array

PHPBB3-13312
[ticket/13402] Code sniffer, unused use, check the function doc blocks

PHPBB3-13402
[ticket/13406] Add a space between the index name and columns list

Currently there's no space between the index name and columns list
when generating ADD INDEX sql query for MySQL DBMSes. This may cause errors
on earlier MySQL versions like 3.23.

PHPBB3-13406
[ticket/13402] Refactor unused use Sniff

PHPBB3-13402
[ticket/13402] Handle arrays and multiples types

PHPBB3-13402
[ticket/13158] Allow adding extra auth checks when the user is posting

PHPBB3-13158
[ticket/13159] Allow to do extra auth checks on report posting

PHPBB3-13159
[ticket/13409] Add event core.search_modify_param_before

PHPBB3-13409