64bit linux port of jam byte-code player

It is working for me now on Scientific Linux 5. Here is my procedure:

- replace unsigned long with unsigned int

- declare uint64_t_count and uint64_t_index explicitly in jbijtag.h

- declaring the stack[] int instead of long (the -1 was getting screwed up in the stack) in jbimain

- You may also need to play with your delay function. In SL5 the looping was optimized so the delay was an enormous number of loops, so I modified the loop function so it would not be optimized