Vladimir Marangozov's long-awaited malloc restructuring.
For more comments, read the patches@python.org archives.
For documentation read the comments in mymalloc.h and objimpl.h.

(This is not exactly what Vladimir posted to the patches list; I've
made a few changes, and Vladimir sent me a fix in private email for a
problem that only occurs in debug mode.  I'm also holding back on his
change to main.c, which seems unnecessary to me.)
diff --git a/Modules/almodule.c b/Modules/almodule.c
index 1033c07..c75fe89 100644
--- a/Modules/almodule.c
+++ b/Modules/almodule.c
@@ -648,7 +648,7 @@
 {
 	alcobject *self;
 	
-	self = PyObject_NEW(alcobject, &Alctype);
+	self = PyObject_New(alcobject, &Alctype);
 	if (self == NULL)
 		return NULL;
 	/* XXXX Add your own initializers here */
@@ -667,7 +667,7 @@
 #else
 	(void) ALfreeconfig(self->config);	/* ignore errors */
 #endif
-	PyMem_DEL(self);
+	PyObject_Del(self);
 }
 
 static PyObject *
@@ -1421,7 +1421,7 @@
 {
 	alpobject *self;
 	
-	self = PyObject_NEW(alpobject, &Alptype);
+	self = PyObject_New(alpobject, &Alptype);
 	if (self == NULL)
 		return NULL;
 	/* XXXX Add your own initializers here */
@@ -1442,7 +1442,7 @@
 		ALcloseport(self->port);
 #endif
 	}
-	PyMem_DEL(self);
+	PyObject_Del(self);
 }
 
 static PyObject *