intsets are now a proper module and part of the stdlib

doc/lib.txt

@@ -42,6 +42,9 @@ Core
   Contains procs for serialization and deseralization of arbitrary Nimrod 
   data structures.
 
+* `typeinfo <typeinfo.html>`_
+  Provides (unsafe) access to Nimrod's run time type information. 
+  
 
 Collections and algorithms
 --------------------------
@@ -53,7 +56,9 @@ Collections and algorithms
 * `lists <lists.html>`_
   Nimrod linked list support. Contains singly and doubly linked lists and
   circular lists ("rings").
-  
+* `intsets <intsets.html>`_
+  Efficient implementation of a set of ints as a sparse bit set.
+
 
 String handling
 ---------------