[ticket/13341] Change coverage to whitelist to prevent errors with temp files.

b4f95deefc9d456c5a2d0f6338f6dcecc0829652 suggests that this can lead to issues
with classes having the same name. However, this does not seem to be a problem
with the current version of PHPUnit we are using.

Despite https://phpunit.de/manual/4.1/en/code-coverage-analysis.html saying
that addUncoveredFilesFromWhitelist="true" is optional, this seems to be on by
default in PHPUnit 4.1.0. As a result, all files are considered for code
coverage; which is what we want.

processUncoveredFilesFromWhitelist is however false (by default) and as such
even files that are considered for code coverage are not processed through PHP
when not used in actual tests. Since it is already impossible to test multiple
classes with the same name in the same test run (without process isolation),
because that would already lead to "cannot redeclare class" errors, it is also
impossible for "cannot redeclare class" errors to happen in test coverage.

PHPBB3-13341
Merge pull request #3146 from bantu/ticket/13341

[ticket/13341] Change coverage to whitelist to prevent errors with temp ...

* bantu/ticket/13341:
  [ticket/13341] Change coverage to whitelist to prevent errors with temp files.

Conflicts:
	phpunit.xml.dist
[ticket/13023] Add template event posting_editor_buttons_custom_tags_before

PHPBB3-13023
[ticket/13342] Fix invalid resetting of CAPTCHA plugin when using Recaptcha.

The Recaptcha plugin class name does not follow the phpbb_captcha_ prefix
convention as all others. Instead it simply uses phpbb_, hence the check
for its existence under phpbb/captcha/plugins/ fails.

PHPBB3-13342
[ticket/13315] Fix loss of CAPTCHA plugin config value.

The plugins were moved to phpbb/captcha/plugins/ after this migration was
created, thus the check is no longer valid and ends up resetting the value
prematurely.

PHPBB3-13315
[ticket/13338] Move insert_config_array_test to functions_acp, add deps.

PHPBB3-13338
[ticket/13338] Do not use the _test.php suffix for abstract test case classes.

PHPBB3-13338
[ticket/13338] Add include statements for dependencies.

PHPBB3-13338
Merge pull request #3146 from bantu/ticket/13341

[ticket/13341] Change coverage to whitelist to prevent errors with temp ...
Merge pull request #3147 from bantu/ticket/13341-ascraeus

[ticket/13341] Change coverage to whitelist to prevent errors with temp files
Merge branch 'develop-olympus' into develop-ascraeus
Merge branch 'develop-ascraeus' into develop
Merge pull request #3145 from bantu/ticket/13338

[ticket/13338] Make all tests run on their own. Avoid _test suffix for abstract test case classes.
Merge branch 'develop-ascraeus' into develop
[ticket/13298] Add missing $db->freeresult(); calls in functions_admin.php

PHPBB3-13298
[ticket/13315] Check for the includes/captcha/plugins/ directory instead.

PHPBB3-13315
[ticket/13277] Force IE to not cache AJAX requests.

Caching causes problems, such as the inability to move a forum/CPF/module in the
same direction by more than one row.

PHPBB3-13277
Merge remote-tracking branch 'Nicofuma/ticket/13023' into develop-ascraeus

* Nicofuma/ticket/13023:
  [ticket/13023] Add template event posting_editor_buttons_custom_tags_before
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/13023] Add template event posting_editor_buttons_custom_tags_before

Conflicts:
	phpBB/styles/subsilver2/template/posting_buttons.html
Merge pull request #3152 from prototech/ticket/13277

[ticket/13277] Force IE to not cache AJAX requests.