Add reference to other views on packet index

Author: carlbennett

templates/Packet/Index.phtml

@@ -26,6 +26,13 @@ require("./header.inc.phtml");
       <article>
         <header>Packet Index</header>
         <section>
+          <p>These packets are also available as constants in
+            <a href="<?php echo Common::relativeUrlToAbsolute("/packet/index.cpp"); ?>">C++</a>,
+            <a href="<?php echo Common::relativeUrlToAbsolute("/packet/index.java"); ?>">Java</a>,
+            <a href="<?php echo Common::relativeUrlToAbsolute("/packet/index.json"); ?>">JSON</a>,
+            <a href="<?php echo Common::relativeUrlToAbsolute("/packet/index.php"); ?>">PHP</a>, and
+            <a href="<?php echo Common::relativeUrlToAbsolute("/packet/index.vb"); ?>">VB6</a>.
+          </p>
           <table>
             <thead>
               <tr>