[api] extend distribution list RNG with architecture element.

This will allow OBS 2.5 to have architectures defined per repository and not globally anymore.

docs/api/api/distributions.rng

@@ -35,6 +35,9 @@
         <element name="reponame">
           <text/>
         </element>
+        <zeroOrMore>
+          <ref name="architecture-element"/>
+        </zeroOrMore>
         <zeroOrMore>
           <ref name="icon-element"/>
         </zeroOrMore>
@@ -44,6 +47,11 @@
       </interleave>
     </element>
   </define>
+  <define ns="" name="architecture-element">
+    <element name="architecture">
+      <ref name="build-arch" />
+    </element>
+  </define>
   <define ns="" name="icon-element">
     <element name="icon">
       <optional>

docs/api/api/distributions.xml

@@ -4,6 +4,10 @@
     <project>openSUSE:11.0</project>
     <repository>standard</repository>
     <reponame>openSUSE_11.0</reponame>
+    <architecture>i586</architecture>
+    <architecture>x86_64</architecture>
+    <architecture>ppc</architecture>
+    <architecture>ppc64</architecture>
     <icon width="8" url="http://opensuse.org/static/os11logo8.png"/>
     <icon width="16" height="16" url="http://opensuse.org/static/os11logo16.png"/>
     <link>http://www.opensuse.org</link>
@@ -22,6 +26,8 @@
     <project>Fedora:9</project>
     <reponame>Fedora_9</reponame>
     <repository>standard</repository>
+    <architecture>i586</architecture>
+    <architecture>x86_64</architecture>
     <icon height="8" url="http://opensuse.org/static/fed9logo8.png"/>
     <icon width="16" height="16" url="http://opensuse.org/static/fed9logo16.png"/>
     <link>http://www.fedoraproject.org</link>