This adds the ability to blink something by replacing the contents of 'text_and_other_conky_vars' with two spaces instead of a space for each character. It's useful for blinking little xpm images when piping to dzen.
I made sure it applies cleanly, and I was going to submit a patch to docs|nano|vim as well, but the check_docs.py script ended up making the patch gigantic and ugly. If you'd like a doc patch as well, let me know.
Patch formatted with a simple "git format-patch origin"