[AVaRICE-user] Download flash patch

[Tom P. <pa...@te...>]

I had recently run into a situation where I needed to be able to 
download the code from an Atmega16 (I'd accidentaly overwritten the 
uploader on an MIB510, and needed a clean copy of the firmware to 
re-flash it), and realized that Avarice couldn't do this. The attached 
patch fixes this problem, and hopefully this will be of use to others. 
It's been tested on the aforementioned Atmega16 (code successfully 
downloaded from one MIB510, and uploaded into another), and *should* 
work on other chips, but YMMV.

Tom Parker