[ticket/11860] htaccess: Support for Apache 2.4's "Require" syntax.

PHPBB3-11860
[ticket/8960] Allow changing avatar path if it's not writable

This change will allow users to change the avatar path even if it's not
writable. However, this will get rid of the error message that the path is
not writable. Due to this, a minor addition to the explain message in the ACP
settings has been made.

PHPBB3-8960
Merge remote-tracking branch 'github-marc1706/ticket/8960-olympus' into develop-olympus

* github-marc1706/ticket/8960-olympus:
  [ticket/8960] Allow changing avatar path if it's not writable
[ticket/12467] Add config*.php and tests_config*.php to .gitignore

PHPBB3-12467
Merge pull request #2371 from nickvergessen/ticket/12467

[ticket/12467] Add config*.php and tests_config*.php to .gitignore

* nickvergessen/ticket/12467:
  [ticket/12467] Add config*.php and tests_config*.php to .gitignore
[ticket/12468] Having mbstring.http_input set to '' is as good as 'pass'.

PHPBB3-12468
Merge remote-tracking branch 'github-bantu/ticket/12468' into develop-olympus

* github-bantu/ticket/12468:
  [ticket/12468] Having mbstring.http_input set to '' is as good as 'pass'.
  [ticket/12467] Add config*.php and tests_config*.php to .gitignore
[ticket/12120] Add Marc Alexander to AUTHORS

PHPBB3-12120
[ticket/12472] Set fast_finish for travis

Now, a build will finish as soon as a job has failed,
or when the only jobs left allow failures.
http://docs.travis-ci.com/user/build-configuration/#Fast-finishing

PHPBB3-12472
Merge remote-tracking branch 'nickvergessen/ticket/12120' into develop-olympus

* nickvergessen/ticket/12120:
  [ticket/12120] Add Marc Alexander to AUTHORS
Merge remote-tracking branch 'github-nickvergessen/ticket/12472' into develop-olympus

* github-nickvergessen/ticket/12472:
  [ticket/12472] Set fast_finish for travis
[ticket/12429] Update PHPUnit to 4.1, update DBUnit to 1.3.

PHPBB3-12429
Merge remote-tracking branch 'github-bantu/ticket/12429' into develop-olympus

* github-bantu/ticket/12429:
  [ticket/12429] Update PHPUnit to 4.1, update DBUnit to 1.3.
Merge remote-tracking branch 'github-bantu/ticket/11860' into develop-olympus

* github-bantu/ticket/11860:
  [ticket/11860] htaccess: Support for Apache 2.4's "Require" syntax.
[ticket/12485] Broken tests due to absolute exclude

PHPBB3-12485
Merge pull request #2396 from Nicofuma/ticket/12485

[ticket/12485] Broken tests due to absolute 'exclude'

* Nicofuma/ticket/12485:
  [ticket/12485] Broken tests due to absolute exclude