update all source files to point to the new repository on GitHub
update URL in comments
typo
modified optiboot: WATCHDOG500MS changed to WATCHDOG1S, as advised at http://code.google.com/p/optiboot/issues/detail?id=28#c9
doc tweak
tweak
several ISP programming improvements
fix fuse programming logic
cleanup
add double blink
updated to OptiBoot and power down after use
add new isp_repair.pde sketch