support copying link to clipboard

[kernc_]

I'd have pastebinit support a command-line switch that made the returned paste-link copied to users clipboard.

That could be easily achieved:
* a new -c command line switch,
* check if xclip or xsel exist (http://stackoverflow.com/questions/377017/test-if-executable-exists-in-python/377028#377028),
* if either does: do a final subprocess.Popen('echo ' + paste_link + '| xclip -selection clipboard') or subprocess.Popen('echo ' + paste_link + '| xsel --input --clipboard'), as appropriate
  (would have to split those strings into tokens though, or use Popen(..., shell=True) )

trivial and good enough! :)

am happy to provide a patch.

[Stéphane Graber (stgraber)]

Having this as an optional function would be fine I think.