update XML schema to support the excluded-404 config option

Author: xabbuh

Resources/config/schema/monolog-1.0.xsd

@@ -20,6 +20,7 @@
             <xsd:element name="channels" type="channels" minOccurs="0" maxOccurs="1" />
             <xsd:element name="publisher" type="publisher" minOccurs="0" maxOccurs="1" />
             <xsd:element name="mongo" type="mongo" minOccurs="0" maxOccurs="1" />
+            <xsd:element name="excluded-404" type="xsd:string" minOccurs="0" maxOccurs="unbounded" />
         </xsd:sequence>
         <xsd:attribute name="type" type="xsd:string" />
         <xsd:attribute name="priority" type="xsd:integer" />