Merge branch '2.7' into 2.8

Conflicts:
	reference/forms/types/button.rst
	reference/forms/types/date.rst
	reference/forms/types/reset.rst
	reference/forms/types/submit.rst

cookbook/controller/error_pages.rst

@@ -251,7 +251,56 @@ will be passed two parameters:
 Instead of creating a new exception controller from scratch you can, of course,
 also extend the default :class:`Symfony\\Bundle\\TwigBundle\\Controller\\ExceptionController`.
 In that case, you might want to override one or both of the ``showAction()`` and
-``findTemplate()`` methods. The latter one locates the template to be used.
+``findTemplate()`` methods. The latter one locates the template to be used. 
+
+.. note::
+
+    In case of extending the
+    :class:`Symfony\\Bundle\\TwigBundle\\Controller\\ExceptionController` you
+    may configure a service to pass the Twig environment and the ``debug`` flag
+    to the constructor. 
+
+    .. configuration-block::
+
+        .. code-block:: yaml
+    
+            # app/config/services.yml
+            services:
+                app.exception_controller:
+                class: AppBundle\CustomExceptionController
+                arguments: ['@twig', '%kernel.debug%']
+
+        .. code-block:: xml
+
+            <!-- app/config/services.xml -->
+            <?xml version="1.0" encoding="utf-8" ?>
+            <container xmlns="http://symfony.com/schema/dic/services"
+                xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd"
+            >
+                <services>
+                    <service id="app.exception_controller"
+                        class="AppBundle\Controller\CustomExceptionController"
+                    >
+                        <argument type="service" id="twig"/>
+                        <argument>%kernel.debug%</argument>
+                    </service>
+                </services>
+            </container>
+
+        .. code-block:: php
+
+            // app/config/services.php
+            use Symfony\Component\DependencyInjection\Reference;
+            use Symfony\Component\DependencyInjection\Definition;
+
+            $definition = new Definition('AppBundle\Controller\CustomExceptionController', array(
+                new Reference('twig'),
+                '%kernel.debug%'
+            ));
+
+    And then configure ``twig.exception_controller`` using the controller as
+    services syntax (e.g. ``app.exception_controller:showAction``).
 
 .. tip::
 

cookbook/email/gmail.rst

@@ -129,7 +129,7 @@ that you `allow less secure apps to access your Gmail account`_.
 
 .. seealso::
 
-    see the :doc:`Swiftmailer configuration reference </reference/configuration/swiftmailer>`
+    See the :doc:`Swiftmailer configuration reference </reference/configuration/swiftmailer>`
     for more details.
 
 .. _`generate an App password`: https://support.google.com/accounts/answer/185833

reference/configuration/framework.rst

@@ -1487,7 +1487,7 @@ cache
 **type**: ``string``
 
 The service that is used to persist class metadata in a cache. The service
-has to implement the :class:`Doctrine\\Common\\Cache\\Cache` interface.
+has to implement the ``Doctrine\Common\Cache\Cache`` interface.
 
 .. seealso::
 

reference/forms/types/birthday.rst

@@ -66,7 +66,31 @@ These options inherit from the :doc:`DateType </reference/forms/types/date>`:
 
 .. include:: /reference/forms/types/options/days.rst.inc
 
-.. include:: /reference/forms/types/options/placeholder.rst.inc
+placeholder
+~~~~~~~~~~~
+
+.. versionadded:: 2.6
+    The ``placeholder`` option was introduced in Symfony 2.6 and replaces
+    ``empty_value``, which is available prior to 2.6.
+
+**type**: ``string`` | ``array``
+
+If your widget option is set to ``choice``, then this field will be represented
+as a series of ``select`` boxes. When the placeholder value is a string,
+it will be used as the **blank value** of all select boxes::
+
+    $builder->add('birthdate', 'birthday', array(
+        'placeholder' => 'Select a value',
+    ));
+
+Alternatively, you can use an array that configures different placeholder
+values for the year, month and day fields::
+
+    $builder->add('birthdate', 'birthday', array(
+        'placeholder' => array(
+            'year' => 'Year', 'month' => 'Month', 'day' => 'Day',
+        )
+    ));
 
 .. include:: /reference/forms/types/options/date_format.rst.inc
 

reference/forms/types/button.rst

@@ -5,7 +5,7 @@ ButtonType Field
 ================
 
 .. versionadded:: 2.3
-    The ``ButtonType`` was introduced in Symfony 2.3
+    The ``ButtonType`` was introduced in Symfony 2.3.
 
 A simple, non-responsive button.
 

reference/forms/types/date.rst

@@ -90,20 +90,23 @@ Field Options
 placeholder
 ~~~~~~~~~~~
 
-**type**: ``string`` or ``array``
+**type**: ``string`` | ``array``
 
 If your widget option is set to ``choice``, then this field will be represented
-as a series of ``select`` boxes. The ``placeholder`` option can be used
-to add a "blank" entry to the top of each select box::
+as a series of ``select`` boxes. When the placeholder value is a string,
+it will be used as the **blank value** of all select boxes::
 
     $builder->add('dueDate', DateType::class, array(
-        'placeholder' => '',
+        'placeholder' => 'Select a value',
     ));
 
-Alternatively, you can specify a string to be displayed for the "blank" value::
+Alternatively, you can use an array that configures different placeholder
+values for the year, month and day fields::
 
     $builder->add('dueDate', DateType::class, array(
-        'placeholder' => array('year' => 'Year', 'month' => 'Month', 'day' => 'Day')
+        'placeholder' => array(
+            'year' => 'Year', 'month' => 'Month', 'day' => 'Day'
+        )
     ));
 
 .. _reference-forms-type-date-format:

reference/forms/types/datetime.rst

@@ -71,7 +71,32 @@ date_widget
 
 .. include:: /reference/forms/types/options/days.rst.inc
 
-.. include:: /reference/forms/types/options/placeholder.rst.inc
+placeholder
+~~~~~~~~~~~
+
+.. versionadded:: 2.6
+    The ``placeholder`` option was introduced in Symfony 2.6 and replaces
+    ``empty_value``, which is available prior to 2.6.
+
+**type**: ``string`` | ``array``
+
+If your widget option is set to ``choice``, then this field will be represented
+as a series of ``select`` boxes. When the placeholder value is a string,
+it will be used as the **blank value** of all select boxes::
+
+    $builder->add('startDateTime', 'datetime', array(
+        'placeholder' => 'Select a value',
+    ));
+
+Alternatively, you can use an array that configures different placeholder
+values for the year, month, day, hour, minute and second fields::
+
+    $builder->add('startDateTime', 'datetime', array(
+        'placeholder' => array(
+            'year' => 'Year', 'month' => 'Month', 'day' => 'Day',
+            'hour' => 'Hour', 'minute' => 'Minute', 'second' => 'Second',
+        )
+    ));
 
 format
 ~~~~~~

reference/forms/types/reset.rst

@@ -5,7 +5,7 @@ ResetType Field
 ===============
 
 .. versionadded:: 2.3
-    The ``ResetType`` was introduced in Symfony 2.3
+    The ``ResetType`` was introduced in Symfony 2.3.
 
 A button that resets all fields to their original values.
 

reference/forms/types/submit.rst

@@ -5,7 +5,7 @@ SubmitType Field
 ================
 
 .. versionadded:: 2.3
-    The ``SubmitType`` type was introduced in Symfony 2.3
+    The ``SubmitType`` type was introduced in Symfony 2.3.
 
 A submit button.
 

reference/forms/types/time.rst

@@ -82,7 +82,31 @@ values.
 Field Options
 -------------
 
-.. include:: /reference/forms/types/options/placeholder.rst.inc
+placeholder
+~~~~~~~~~~~
+
+.. versionadded:: 2.6
+    The ``placeholder`` option was introduced in Symfony 2.6 and replaces
+    ``empty_value``, which is available prior to 2.6.
+
+**type**: ``string`` | ``array``
+
+If your widget option is set to ``choice``, then this field will be represented
+as a series of ``select`` boxes. When the placeholder value is a string,
+it will be used as the **blank value** of all select boxes::
+
+    $builder->add('startTime', 'time', array(
+        'placeholder' => 'Select a value',
+    ));
+
+Alternatively, you can use an array that configures different placeholder
+values for the hour, minute and second fields::
+
+    $builder->add('startTime', 'time', array(
+        'placeholder' => array(
+            'hour' => 'Hour', 'minute' => 'Minute', 'second' => 'Second',
+        )
+    ));
 
 .. include:: /reference/forms/types/options/hours.rst.inc