* Migrate set() and frozenset() from the sandbox.
* Install the unittests, docs, newsitem, include file, and makefile update.
* Exercise the new functions whereever sets.py was being used.

Includes the docs for libfuncs.tex.  Separate docs for the types are
forthcoming.
diff --git a/Include/Python.h b/Include/Python.h
index 26d2211..9379c66 100644
--- a/Include/Python.h
+++ b/Include/Python.h
@@ -86,6 +86,7 @@
 #include "listobject.h"
 #include "dictobject.h"
 #include "enumobject.h"
+#include "setobject.h"
 #include "methodobject.h"
 #include "moduleobject.h"
 #include "funcobject.h"