Add some documentation for the experiment.metadata and

experiment.nsfile methods.  Prune some more fields out of the metadata
return value.

xmlrpc/emulabserver.py.in

@@ -1382,7 +1382,18 @@ class experiment:
             "keyhash",
             "eventkey",
             "sim_reswap_count",
-            "elab_in_elab"
+            "elab_in_elab",
+            "locpiper_port",
+            "locpiper_pid",
+            "usemodelnet",
+            "priority",
+            "modelnet_edges",
+            "modelnet_cores",
+            "elabinelab_nosetup",
+            "event_sched_pid",
+            "wa_bw_solverweight",
+            "wa_plr_solverweight",
+            "wa_delay_solverweight",
             ])
         
         vue = DBQueryFatal("SELECT name,value FROM virt_user_environment "

xmlrpc/xmlrpcapi.php3

@@ -630,6 +630,53 @@ experiments.
    </tr>
   </table>
 
+  <br>
+  <li><tt><b>metadata</b></tt>: Get any metadata associated with the given
+  experiment.  The return value is a hashtable containing fields such as the
+  experiment's description and creation date.
+  <br>
+  <br>
+  The required arguments are:<br><br>
+  <table cellpadding=2>
+  <tr>
+    <th>Name</th><th>Type</th><th>Description</th>
+  </tr>
+  <tr></tr>
+  <tr>
+    <td><tt>proj</tt></td>
+    <td>string</td>
+    <td>The Emulab project ID of the experiment</td>
+  </tr>
+  <tr>
+    <td><tt>exp</tt></td>
+    <td>string</td>
+    <td>The Emulab experiment ID</td>
+  </tr>
+  </table>
+
+  <br>
+  <li><tt><b>nsfile</b></tt>: Get the NS file associated with the given
+  experiment.
+  <br>
+  <br>
+  The required arguments are:<br><br>
+  <table cellpadding=2>
+  <tr>
+    <th>Name</th><th>Type</th><th>Description</th>
+  </tr>
+  <tr></tr>
+  <tr>
+    <td><tt>proj</tt></td>
+    <td>string</td>
+    <td>The Emulab project ID of the experiment</td>
+  </tr>
+  <tr>
+    <td><tt>exp</tt></td>
+    <td>string</td>
+    <td>The Emulab experiment ID</td>
+  </tr>
+  </table>
+
   <br>
   <li><tt><b>swapexp</b></tt>: Swap an experiment in or out. The experiment
   must, of course, be in the proper state for requested operation.