Merge branch '2.1'

Author: weaverryan

cookbook/console/logging.rst

@@ -77,7 +77,7 @@ First, create a new sub-class of :class:`Symfony\\Bundle\\FrameworkBundle\\Conso
 and override its :method:`Symfony\\Bundle\\FrameworkBundle\\Console\\Application::run`
 method, where exception handling should happen:
 
-.. warning::
+.. caution::
 
     Due to the nature of the core :class:`Symfony\\Component\\Console\\Application`
     class, much of the :method:`run<Symfony\\Bundle\\FrameworkBundle\\Console\\Application::run>`

reference/forms/types/radio.rst

@@ -4,9 +4,9 @@
 radio Field Type
 ================
 
-Creates a single radio button. This should always be used for a field that
-has a Boolean value: if the radio button is selected, the field will be set
-to true, if the button is not selected, the value will be set to false.
+Creates a single radio button. If the radio button is selected, the field will
+be set to the specified value. Radio buttons cannot be unchecked - the value only
+changes when another radio button with the same name gets checked.
 
 The ``radio`` type isn't usually used directly. More commonly it's used
 internally by other types such as :doc:`choice</reference/forms/types/choice>`.