Relative pid file paths don't work about daemonize

[thesharp]

Hey @jdelic.

That's a good catch, not that it's a common thing--to have relative path to the pid-file. Could you please make a pull request with that feature?

Thanks.

[knsd]

Why not self.pid = os.path.abspath(pid)?

[jdelic]

Why not self.pid = os.path.abspath(pid)?

😁 good point, I was trying out other things to see whether abspath would actually work in every configuration, but you're totally right, the above patch can just be shortened to self.pid = os.path.abspath(pid)

[thesharp]

@jdelic PR still welcomed.