Merge branch '3.0'

* 3.0:
  Updated all the README files
  [TwigBundle] Fix failing test on appveyor
  Improved the error message when using "@" in a decorated service
  Improve error reporting in router panel of web profiler
  [DoctrineBridge][Form] Fix performance regression in EntityType
  [FrameworkBundle] Fix a regression in handling absolute and namespaced template paths
  Allow to normalize \Traversable
  minor [Form] fix tests added by #16886
  Remove _path from query parameters when fragment is a subrequest and request attributes are already set Added tests for _path removal in FragmentListener
  Simplified everything
  Added a test
  Fixed the problem in an easier way
  Fixed a syntax issue
  Improved the error message when a template is not found
  [CodingStandards] Conformed to coding standards
  [TwigBundle] fixed Include file locations in "Template could not be found" exception

Author: fabpot

README.md

@@ -1,53 +1,14 @@
 Finder Component
 ================
 
-Finder finds files and directories via an intuitive fluent interface.
-
-```php
-use Symfony\Component\Finder\Finder;
-
-$finder = new Finder();
-
-$iterator = $finder
-  ->files()
-  ->name('*.php')
-  ->depth(0)
-  ->size('>= 1K')
-  ->in(__DIR__);
-
-foreach ($iterator as $file) {
-    print $file->getRealpath()."\n";
-}
-```
-
-The iterator returns instances of [Symfony\Component\Finder\SplFileInfo\SplFileInfo][1].
-Besides the build-in methods inherited from [\SplFileInfo][2] (`getPerms()`, `getSize()`, ...),
-you can also use `getRelativePath()` and `getRelativePathname()`. Read the
-[official documentation][3] for more information.
-
-But you can also use it to find files stored remotely like in this example where
-we are looking for files on Amazon S3:
-
-```php
-$s3 = new \Zend_Service_Amazon_S3($key, $secret);
-$s3->registerStreamWrapper("s3");
-
-$finder = new Finder();
-$finder->name('photos*')->size('< 100K')->date('since 1 hour ago');
-foreach ($finder->in('s3://bucket-name') as $file) {
-    print $file->getFilename()."\n";
-}
-```
+The Finder component finds files and directories via an intuitive fluent
+interface.
 
 Resources
 ---------
 
-You can run the unit tests with the following command:
-
-    $ cd path/to/Symfony/Component/Finder/
-    $ composer install
-    $ phpunit
-
-[1]: http://api.symfony.com/2.5/Symfony/Component/Finder/SplFileInfo.html
-[2]: http://php.net/splfileinfo
-[3]: https://symfony.com/doc/current/components/finder.html#usage
+  * [Documentation](https://symfony.com/doc/current/components/finder.html)
+  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
+  * [Report issues](https://github.com/symfony/symfony/issues) and
+    [send Pull Requests](https://github.com/symfony/symfony/pulls)
+    in the [main Symfony repository](https://github.com/symfony/symfony)