Merge branch '3.4' into 4.0

* 3.4:
  [Translation] Process multiple segments within a single unit.
  Document the container.autowiring.strict_mode option
  fix custom radios/inputs for checkbox/radio type
  Another PR template tweak
  [FrameworkBundle] Add missing XML config for circular_reference_handler. Add tests.
  fix CS
  [PropertyInfo] ReflectionExtractor: give a chance to other extractors if no properties
  Clean calls to http_build_query()
  [WebProfilerBundle] limit ajax request to 100 and remove the last one
  Add support for URL-like DSNs for the PdoSessionHandler
  [HttpFoundation] Fix missing "throw" in JsonResponse
  Improve the documentation of
  Suppress warning from sapi_windows_vt100_support on stream other than STDIO
  removed extra-verbose comments
  Fixes #26136: Avoid emitting warning in hasParameterOption()
  Added a README entry to the PR template
  [HttpFoundation] Add x-zip-compressed to MimeTypeExtensionGuesser.
  [DI] Add null check for removeChild

Author: nicolas-grekas

Resources/config/schema/symfony-1.0.xsd

@@ -230,6 +230,7 @@
         <xsd:attribute name="cache" type="xsd:string" />
         <xsd:attribute name="enable-annotations" type="xsd:boolean" />
         <xsd:attribute name="name-converter" type="xsd:string" />
+        <xsd:attribute name="circular-reference-handler" type="xsd:string" />
     </xsd:complexType>
 
     <xsd:complexType name="property_info">

Tests/DependencyInjection/Fixtures/php/full.php

@@ -68,6 +68,7 @@
         'enabled' => true,
         'enable_annotations' => true,
         'name_converter' => 'serializer.name_converter.camel_case_to_snake_case',
+        'circular_reference_handler' => 'my.circular.reference.handler',
     ),
     'property_info' => true,
     'ide' => 'file%%link%%format',

Tests/DependencyInjection/Fixtures/xml/full.xml

@@ -41,7 +41,7 @@
         </framework:translator>
         <framework:validation enabled="true" />
         <framework:annotations cache="file" debug="true" file-cache-dir="%kernel.cache_dir%/annotations" />
-        <framework:serializer enabled="true" enable-annotations="true" name-converter="serializer.name_converter.camel_case_to_snake_case" />
+        <framework:serializer enabled="true" enable-annotations="true" name-converter="serializer.name_converter.camel_case_to_snake_case" circular-reference-handler="my.circular.reference.handler" />
         <framework:property-info />
     </framework:config>
 </container>

Tests/DependencyInjection/Fixtures/yml/full.yml

@@ -51,9 +51,10 @@ framework:
         debug:   true
         file_cache_dir: '%kernel.cache_dir%/annotations'
     serializer:
-         enabled:        true
-         enable_annotations: true
-         name_converter: serializer.name_converter.camel_case_to_snake_case
+         enabled:                    true
+         enable_annotations:         true
+         name_converter:             serializer.name_converter.camel_case_to_snake_case
+         circular_reference_handler: my.circular.reference.handler
     property_info: ~
     ide: file%%link%%format
     request:

Tests/DependencyInjection/FrameworkExtensionTest.php

@@ -774,6 +774,7 @@ public function testSerializerEnabled()
         $this->assertNull($container->getDefinition('serializer.mapping.class_metadata_factory')->getArgument(1));
         $this->assertEquals(new Reference('serializer.name_converter.camel_case_to_snake_case'), $container->getDefinition('serializer.normalizer.object')->getArgument(1));
         $this->assertEquals(new Reference('property_info', ContainerBuilder::IGNORE_ON_INVALID_REFERENCE), $container->getDefinition('serializer.normalizer.object')->getArgument(3));
+        $this->assertEquals(array('setCircularReferenceHandler', array(new Reference('my.circular.reference.handler'))), $container->getDefinition('serializer.normalizer.object')->getMethodCalls()[0]);
     }
 
     public function testRegisterSerializerExtractor()