libwww patch (suggested)

Hello,

Wonderful job on libwww!

I finding the tracing especially helpful as I am just starting to use
your library.
I had a memory leak in my prototype app and used the tracing facility to
pin it down.
However, I had to make a small change to HTMemory.c to compare where
memory was allocated to where it was freed.
I ran diff against Rev 2.95 and have attached the patch file for your
consideration.

There appear to be a couple of very small memory leaks related to
HTLoadToChunk()(in my app, an average of about 3 bytes per call). If I
find them, I'll let you know.

Thanks again for libwww!

Cheers, 

John Warriner
69c69,73
<     if (ptr != NULL) return ptr;
---
>     if (ptr != NULL) 
>     {
> 		HTTRACE(MEM_TRACE, "HTMemory_malloc %d @ %p\n" _ size _ (void *)ptr );
> 		return ptr;
>     }
89c93,97
<     if (ptr != NULL) return ptr;
---
>     if (ptr != NULL)
>     {
> 		HTTRACE(MEM_TRACE, "HTMemory_calloc %d @ %p\n" _ size _ (void *)ptr );
> 		return ptr;
>     }
112a121,124
>     {
> 		HTTRACE(MEM_TRACE, "HTMemory_realloc %d @ %p\n" _ size _ (void *)ptr );
> 		return ptr;
>     }