merged branch Adel-E/patch-2 (PR #428)

Commits
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ff4432eb Fix phpdocs variable name

Discussion
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Fix phpdocs variable name

src/Silex/Application/SecurityTrait.php

@@ -45,7 +45,7 @@ trait SecurityTrait
      * Encodes the raw password.
      *
      * @param UserInterface $user     A UserInterface instance
-     * @param string        $raw  The password to encode
+     * @param string        $password The password to encode
      *
      * @return string The encoded password
      *