>  very nice creation. i want to understand the code but 
its 
> a bit confusing. I was wondering did you make any 
diagrams, 
> flow charts, use cases or such. or javadoc like function 
> explanations for this super software. any'thing to get me 

Err not really - I will have to document everything one 
day, especially interactions between the core 
(htscore.c,htsparse.c) and modules like cache (htscache.c), 
background download (htsback.c) and so on..