Merge branch '2.7' into 2.8

* 2.7:
  [ci] Tmp force phpunit/phpunit-mock-objects <= 3.0.0

Author: nicolas-grekas

phpunit

@@ -49,6 +49,7 @@ if (!file_exists("$PHPUNIT_DIR/phpunit-$PHPUNIT_VERSION/phpunit") || md5_file(__
     $zip->close();
     chdir("phpunit-$PHPUNIT_VERSION");
     passthru("$COMPOSER remove --no-update symfony/yaml");
+    passthru("$COMPOSER require --no-update phpunit/phpunit-mock-objects \"<=3.0.0\"");
     passthru("$COMPOSER require --dev --no-update symfony/phpunit-bridge \">=2.8@dev\"");
     passthru("$COMPOSER install --prefer-source --no-progress --ansi");
     file_put_contents('phpunit', <<<EOPHP