[ticket/11103] Use dependency injection instead of phpbb_container

PHPBB3-11103
[ticket/11103] Do not abbreviate template output

PHPBB3-11103
[ticket/11103] Make $phpbb_notifications a global and use it everywhere

Do not use phpbb_container everywhere (makes testing difficult)

PHPBB3-11103
[ticket/11103] Do not use  Symfony\...\ContainerBuilder;

It's no longer needed

PHPBB3-11103
[ticket/11103] Mock notification manager

Fixing delete_user_pms_test.php

PHPBB3-11103
[ticket/11103] Create schema files with notification tables

PHPBB3-11103
[ticket/11103] Fixing a few bugs from the previous changes

PHPBB3-11103
[ticket/11103] Working on test case

Fixing extension type/method naming scheme so they can be autoloaded.

Other bugs

PHPBB3-11103
[ticket/11103] Remove extra line break in the header

Was introduced with ff136cc96a62147bc7468b716b86a30f12754e77

PHPBB3-11103
[ticket/11103] ACP option to enable/disable notifications output in header

PHPBB3-11103
[ticket/11103] Bug fixing

PHPBB3-11103
[ticket/11103] trigger_error message when preferences updated in UCP

PHPBB3-11103
[ticket/11103] Move UCP Notification Options to Board Preferences tab

Also rename to "Edit notification options" for consistency

PHPBB3-11103
[ticket/11103] More extensive notification tests

PHPBB3-11103
[ticket/11103] Suppress errors from unlink/rmdir in the test case helpers

PHPBB3-11103
[ticket/11103] Starting work on combining notifications

Just for posts currently and not yet outputted.

PHPBB3-11103
Merge branch 'develop' of git://github.com/phpbb/phpbb3 into ticket/11103
[ticket/11103] Fix the issue of time changing when editing items

PHPBB3-11103
[ticket/11103] Starting work on the reported posts notification

PHPBB3-11103
[ticket/11103] Working on report notifications (post/pm)

PHPBB3-11103