add search and footer elements, remove head

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@289873 13f79535-47bb-0310-9956-ffa450edef68

xdoc/src/xsd/maven-navigation.xsd

@@ -21,7 +21,6 @@
     <xs:complexType>
       <xs:sequence>
         <xs:element ref="title"/>
-        <xs:element ref="head" minOccurs="0"/>
         <xs:element ref="body"/>
       </xs:sequence>
       <xs:attribute name="name" type="xs:string"/>
@@ -36,16 +35,19 @@
       </xs:simpleContent>
     </xs:complexType>
   </xs:element>
-  <xs:element name="head"/>
   <xs:element name="body">
     <xs:complexType>
       <xs:sequence>
         <xs:element ref="breadcrumbs" minOccurs="0"/>
         <xs:element ref="links" minOccurs="0"/>
         <xs:element ref="menu" minOccurs="0" maxOccurs="unbounded"/>
+        <xs:element ref="search" minOccurs="0"/>
+        <xs:element ref="footer" minOccurs="0"/>
       </xs:sequence>
     </xs:complexType>
   </xs:element>
+  <xs:element name="search"/>
+  <xs:element name="footer"/>
   <xs:element name="links">
     <xs:complexType>
       <xs:sequence>