#8 Replace like-named files rather than adding them

[Bret Mogilefsky]

I interrupted a copy of a bunch of files into a flickfs
directory. I wasn't sure which files completed
uploading and which didn't. So I just restarted the
copy, figuring it would overwrite the files that were
already there.

It did, but I ended up with duplicates of all of those
files in my photostream, and it was very confusing to
know which ones should or shouldn't be deleted to clear
that up. Also someone had tagged one of my copies as a
favorite, and I didn't know if me deleting a copy would
cause him to lose track of it!

Much better behavior would be to use Flickr's new
"Replace this photo" functionality to replace existing
files with the same names rather than to add a new pic
in your account.

I realize that some people will upload files with the
same names as existing files which have different
content... So this might need to be a config option.