major header cleanup

Hashtable.h

@@ -3,18 +3,13 @@
 #ifndef HEADER_Hashtable
 #define HEADER_Hashtable
 /*
-htop
+htop - Hashtable.h
 (C) 2004-2011 Hisham H. Muhammad
 Released under the GNU GPL, see the COPYING file
 in the source distribution for its full text.
 */
 
-
-#include <stdlib.h>
 #include <stdbool.h>
-#include <assert.h>
-
-#include "debug.h"
 
 typedef struct Hashtable_ Hashtable;