[FrameworkBundle] Add missing html5-allow-no-tld to XSD file

Author: nicolas-grekas

src/Symfony/Bundle/FrameworkBundle/Resources/config/schema/symfony-1.0.xsd

@@ -295,6 +295,7 @@
     <xsd:simpleType name="email-validation-mode">
         <xsd:restriction base="xsd:string">
             <xsd:enumeration value="html5" />
+            <xsd:enumeration value="html5-allow-no-tld" />
             <xsd:enumeration value="loose" />
             <xsd:enumeration value="strict" />
         </xsd:restriction>