merged branch samuelwilliams/formDoc (PR #5928)

This PR was squashed before being merged into the master branch (closes #5928).

Commits
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6a033f3 setData method also accepts objects. Doc should reflect this.

Discussion
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setData method also accepts objects. Doc should reflect this.

Bug fix: no
Feature addition: no
Backwards compatibility break: no
Symfony2 tests pass: yes
Fixes the following tickets: NA
Todo: None
License of the code: MIT
Documentation PR: None

src/Symfony/Component/Form/FormInterface.php

@@ -98,7 +98,7 @@ public function getErrors();
     /**
      * Updates the form with default data.
      *
-     * @param  array $modelData The data formatted as expected for the underlying object
+     * @param  mixed $modelData The data formatted as expected for the underlying object
      *
      * @return FormInterface The form instance
      *