Merge branch '4.4' into 5.1

* 4.4:
  Update import.rst

Author: OskarStark

service_container/import.rst

@@ -80,7 +80,8 @@ a relative or absolute path to the imported file:
         # config/services.yaml
         imports:
             - { resource: services/mailer.yaml }
-
+            # If you want to import a whole directory:
+            - { resource: services/ }
         services:
             _defaults:
                 autowire: true
@@ -103,6 +104,8 @@ a relative or absolute path to the imported file:
 
             <imports>
                 <import resource="services/mailer.xml"/>
+                <!-- If you want to import a whole directory: -->
+                <import resource="services/"/>
             </imports>
 
             <services>
@@ -122,6 +125,8 @@ a relative or absolute path to the imported file:
 
         return function(ContainerConfigurator $configurator) {
             $configurator->import('services/mailer.php');
+            // If you want to import a whole directory:
+            $configurator->import('services/');
 
             $services = $configurator->services()
                 ->defaults()