[ticket/12671] Possibility to use NOT LIKE expression

PHPBB3-12671
[ticket/12794] Properly validate google+ field against valid character set

PHPBB3-12794
[ticket/12671] Possibility to use NOT LIKE expression

PHPBB3-12671
[ticket/12671] Possibility to use NOT LIKE expression

PHPBB3-12671
[ticket/12671] Possibility to use NOT LIKE expression

PHPBB3-12671
[ticket/12938] Remove the 'Download all attachments' feature.

PHPBB3-12938
[ticket/12943] Add core.phpbb_generate_debug_output core event

Add core.phpbb_generate_debug_output core event to allow extensions
outputting additional debug info.

PHPBB3-12943
[ticket/12953] Page title not updated when notifications are marked as read

PHPBB3-12953
[ticket/12671] Possibility to use NOT LIKE expression

PHPBB3-12671
[ticket/12938] Remove functional tests for 'Download all attachments'.

PHPBB3-12938
[ticket/12956] Ensure the contact columns have been added before using them

PHPBB3-12956
Merge pull request #2852 from bantu/ticket/12938

[ticket/12938] Remove the 'Download all attachments' feature.

* bantu/ticket/12938:
  [ticket/12938] Remove functional tests for 'Download all attachments'.
  [ticket/12938] Remove the 'Download all attachments' feature.
Merge pull request #2855 from Geolim4/ticket/12953

[ticket/12953] Page title not updated when notifications are marked as read

* Geolim4/ticket/12953:
  [ticket/12953] Page title not updated when notifications are marked as read
Merge pull request #2846 from rxu/ticket/12943

[ticket/12943] Add core.phpbb_generate_debug_output core event

* rxu/ticket/12943:
  [ticket/12943] Add core.phpbb_generate_debug_output core event
Merge pull request #2837 from Geolim4/ticket/12671

Ticket/12671 Possibility to use NOT LIKE expression

* Geolim4/ticket/12671:
  [ticket/12671] Possibility to use NOT LIKE expression
  [ticket/12671] Possibility to use NOT LIKE expression
  [ticket/12671] Possibility to use NOT LIKE expression
  [ticket/12671] Possibility to use NOT LIKE expression
  [ticket/12671] Possibility to use NOT LIKE expression
Merge pull request #2836 from marc1706/ticket/12794

[ticket/12794] Properly validate google+ field against valid character set

* marc1706/ticket/12794:
  [ticket/12794] Properly validate google+ field against valid character set
[ticket/12950] Force the installer to use language=en

PHPBB3-12950
Merge remote-tracking branch 'github-dhruvgoel92/ticket/12950' into develop-ascraeus

* github-dhruvgoel92/ticket/12950:
  [ticket/12950] Force the installer to use language=en
Merge pull request #2858 from nickvergessen/ticket/12956

[ticket/12956] Ensure the contact columns have been added before using t...

* nickvergessen/ticket/12956:
  [ticket/12956] Ensure the contact columns have been added before using them