[ticket/11753] Update MySQL upgrader schema data.

PHPBB3-11753
[ticket/11753] Remove ?> from MySQL Upgrader.

PHPBB3-11753
Merge remote-tracking branch 'bantu/ticket/11753' into prep-release-3.0.12

* bantu/ticket/11753:
  [ticket/11753] Remove ?> from MySQL Upgrader.
  [ticket/11753] Update MySQL upgrader schema data.
Merge branch 'prep-release-3.0.12' into develop-olympus

* prep-release-3.0.12:
  [ticket/11753] Remove ?> from MySQL Upgrader.
  [ticket/11753] Update MySQL upgrader schema data.
Merge branch 'develop-olympus' into develop

* develop-olympus:
  [ticket/11753] Remove ?> from MySQL Upgrader.
  [ticket/11753] Update MySQL upgrader schema data.
Merge branch 'develop' of https://github.com/phpbb/phpbb3 into develop

# By Bruno Ais
# Via Bruno Ais (1) and Joas Schilling (1)
* 'develop' of https://github.com/phpbb/phpbb3:
  [ticket/11638] Variable names goof...