Update to reflect that 8.4 has been released.

While here, switch to using svn tags (including HEAD and RELENG_8).

Reviewed by:	hrs

en_US.ISO8859-1/htdocs/releng/index.xml

@@ -50,9 +50,9 @@
     </tr>
 
     <tr>
-      <td>TBD</td>
+      <td>June 7 2013</td>
       <td>&os; 8.4</td>
-      <td><a href="&base;/releases/8.4R/schedule.html">Target Schedule</a></td>
+      <td>Released</td>
     </tr>
 
     <tr>
@@ -80,7 +80,7 @@
     </tr>
 
     <tr>
-      <td><tt>HEAD</tt></td>
+      <td><tt>head</tt></td>
       <td>Open</td>
       <td>committers</td>
       <td>Active development branch for 10-CURRENT.</td>
@@ -108,12 +108,19 @@
     </tr>
 
     <tr>
-      <td><tt>RELENG_8</tt></td>
+      <td><tt>stable/8</tt></td>
       <td>Open</td>
       <td>committers</td>
       <td>Development branch for 8-STABLE.</td>
     </tr>
 
+    <tr>
+      <td><tt>releng/8.4</tt></td>
+      <td>Frozen</td>
+      <td>&contact.re;</td>
+      <td>FreeBSD 8.4 supported errata fix branch.</td>
+    </tr>
+
     <tr>
       <td><tt>RELENG_8_3</tt></td>
       <td>Frozen</td>