Optimize source includes

src/rws_error.h

@@ -24,7 +24,7 @@
 #ifndef __RWS_ERROR_H__
 #define __RWS_ERROR_H__ 1
 
-#include "string.h"
+#include "rws_string.h"
 
 typedef struct _rws_error_struct
 {

src/rws_memory.c

@@ -21,7 +21,7 @@
  */
 
 
-#include "memory.h"
+#include "rws_memory.h"
 #include <string.h>
 #include <stdlib.h>
 #include <assert.h>