revert to stable pimple.
code comment style.
Merge branch '7.x-pimple' into 7.x-autoload
revert to stable pimple.
Merge branch '7.x-autoload' into 7.x-symfony
fix comment.
Merge branch '7.x-pimple' into 7.x-autoload
Merge branch '7.x-autoload' into 7.x-symfony