Without this change, Apache tries to serve the static files from
/dev/null/static, which never exists, so users will see all exciting
manner of errors.
I've assumed that the correct directory is the default directory that
Freedom-Maker installs Plinth to, currently ``/home/fbx/plinth``.
Other distributions will need to patch this out to their preferred
location, like ``/usr/share/plinth/static``.
Run as user/group plinth, not www-data.
Rewrite to use lsb init-functions for starting/stopping and output.
Use /bin/sh instead of bash to speed up the boot.
- add exmachina code and test code
- modify plinth.py to listen for shared secret on stdin at start
(if appropriate flag is set) and try to connect to exmachina daemon
- use exmachina to read and set /etc/hostname as a demo
- update plinth init.d script to start exmachina and share keys
- update docs with new deps and run instructions
