Added documentation for the new pluggable cache filename generation in FileCache
diff --git a/ref/cache-objects.html b/ref/cache-objects.html
index f84cc23..1ce96ea 100644
--- a/ref/cache-objects.html
+++ b/ref/cache-objects.html
@@ -62,7 +62,7 @@
 
 <P>
 <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
-  <td><nobr><b><tt id='l2h-16' xml:id='l2h-16' class="method">get</tt></b>(</nobr></td>
+  <td><nobr><b><tt id='l2h-17' xml:id='l2h-17' class="method">get</tt></b>(</nobr></td>
   <td><var>key</var>)</td></tr></table></dt>
 <dd>
 Takes a string <var>key</var> and returns the value as a string.
@@ -70,7 +70,7 @@
 
 <P>
 <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
-  <td><nobr><b><tt id='l2h-17' xml:id='l2h-17' class="method">set</tt></b>(</nobr></td>
+  <td><nobr><b><tt id='l2h-18' xml:id='l2h-18' class="method">set</tt></b>(</nobr></td>
   <td><var>key, value</var>)</td></tr></table></dt>
 <dd>
 Takes a string <var>key</var> and <var>value</var> and stores it in the cache.
@@ -78,7 +78,7 @@
 
 <P>
 <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
-  <td><nobr><b><tt id='l2h-18' xml:id='l2h-18' class="method">delete</tt></b>(</nobr></td>
+  <td><nobr><b><tt id='l2h-19' xml:id='l2h-19' class="method">delete</tt></b>(</nobr></td>
   <td><var>key</var>)</td></tr></table></dt>
 <dd>
 Deletes the cached value stored at <var>key</var>. The value