twig implementation

vendor/symfony/intl/Symfony/Component/Intl/README.md

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+Intl Component
+=============
+
+A PHP replacement layer for the C intl extension that includes additional data
+from the ICU library.
+
+The replacement layer is limited to the locale "en". If you want to use other
+locales, you should [install the intl extension] [1] instead.
+
+Documentation
+-------------
+
+The documentation for the component can be found [online] [2].
+
+Resources
+---------
+
+You can run the unit tests with the following command:
+
+    $ cd path/to/Symfony/Component/Intl/
+    $ composer.phar install --dev
+    $ phpunit
+
+[0]: http://www.php.net/manual/en/intl.setup.php
+[1]: http://symfony.com/doc/2.3/components/intl.html