* add unit tests
* introduce filename filter to DirectoryResource (to restrict change monitoring to a subset of files)
* modify AnnotationDirectoryLoader.php to use filename filter set on Controller\.php$
This reverts commit f53080860a.
Revert "[Router] config fixes"
This reverts commit 51beecc6f2.
Revert "moved duplicated files to a new Config component"
This reverts commit a8ec9b27f0.