Issue #2454393 by hussainweb: Upgrade to Symfony 2.6.5

core/composer.lock

core/vendor/composer/installed.json

...ymfony/browser-kit/Symfony/Component/BrowserKit/README.md

...ony/browser-kit/Symfony/Component/BrowserKit/Response.php

...ny/browser-kit/Symfony/Component/BrowserKit/composer.json

...browser-kit/Symfony/Component/BrowserKit/phpunit.xml.dist

...fony/class-loader/Symfony/Component/ClassLoader/README.md

...t/ClassLoader/Tests/LegacyApcUniversalClassLoaderTest.php

...nent/ClassLoader/Tests/LegacyUniversalClassLoaderTest.php

.../class-loader/Symfony/Component/ClassLoader/composer.json

...ass-loader/Symfony/Component/ClassLoader/phpunit.xml.dist

...fony/css-selector/Symfony/Component/CssSelector/README.md

.../css-selector/Symfony/Component/CssSelector/composer.json

...s-selector/Symfony/Component/CssSelector/phpunit.xml.dist

...ymfony/debug/Symfony/Component/Debug/ExceptionHandler.php

core/vendor/symfony/debug/Symfony/Component/Debug/README.md

.../debug/Symfony/Component/Debug/Tests/ErrorHandlerTest.php

.../FatalErrorHandler/ClassNotFoundFatalErrorHandlerTest.php

...endor/symfony/debug/Symfony/Component/Debug/composer.json

...or/symfony/debug/Symfony/Component/Debug/phpunit.xml.dist