changable PIDFile path

[Andrwe]

Hi,

it should be possible to specify the path of the PIDFile while running in daemon-mode.

If you run the daemon as non-root-user the path of the daemon-binary has to be writeable for this user otherwise the daemon doesn't start.
This means currently you aren't able to install this application in a default linux FHS because the PIDFile would be created in /usr/bin/.

A quick fix I'm using is to add the following lines to the parameters of "Daemons.run":
dir_mode: :normal,
dir: "/var/run/palava-machine/",

This approach isn't quite portable as the path has to be created by the installation process.

Regards,
Andrwe