[DOXIASITETOOLS-82][DOXIASITETOOLS-155] header/footer are String type since 1.7.0 only: previously, they were DOM, don't alter past (we may generate translaters)

git-svn-id: https://svn.apache.org/repos/asf/maven/doxia/doxia-sitetools/trunk@1730240 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/doxia-decoration-model/src/main/mdo/decoration.mdo b/doxia-decoration-model/src/main/mdo/decoration.mdo
index da94924..138ff25 100644
--- a/doxia-decoration-model/src/main/mdo/decoration.mdo
+++ b/doxia-decoration-model/src/main/mdo/decoration.mdo
@@ -407,7 +407,14 @@
         <field>
           <name>head</name>
           <description>Additional content (like JavaScript) to include in the HEAD block of the generated pages.</description>
-          <version>1.0.0+</version>
+          <version>1.0.0/1.6.0</version>
+          <type>DOM</type>
+          <identifier>true</identifier>
+        </field>
+        <field>
+          <name>head</name>
+          <description>Additional content (like JavaScript) to include in the HEAD block of the generated pages.</description>
+          <version>1.7.0+</version>
           <type>String</type>
           <identifier>true</identifier>
         </field>
@@ -444,10 +451,17 @@
         <field>
           <name>footer</name>
           <description>If present, the contained text will be used instead of the generated copyright text.</description>
-          <version>1.1.0+</version>
+          <version>1.7.0+</version>
           <type>String</type>
           <identifier>true</identifier>
         </field>
+        <field>
+          <name>footer</name>
+          <description>If present, the contained text will be used instead of the generated copyright text.</description>
+          <version>1.1.0/1.6.0</version>
+          <type>DOM</type>
+          <identifier>true</identifier>
+        </field>
       </fields>
     </class>