[ticket/11224] SQL cache destroy does not destroy queries to tables joined

https://tracker.phpbb.com/browse/PHPBB3-11224

PHPBB3-11224
[ticket/11224] Fix returned data

PHPBB3-11224
[ticket/11224] Fix the blank line after ?>

PHPBB3-11224
[ticket/11224] Add unit test

PHPBB3-11224
[ticket/11224] Fix coding style

PHPBB3-11224
[ticket/11224] Use assertNotEquals(false) instead of assertNotFalse()

assertNotFalse() is unavailable with the version of phpunit used with php
5.2

PHPBB3-11224
[ticket/11224] Remove new line in acm_memory.php

PHPBB3-11224
[ticket/11224] Adds a test case

PHPBB3-11224
Merge pull request #2460 from Nicofuma/ticket/11224

[ticket/11224] SQL cache destroy does not destroy queries to tables joined