Patch adds simple (so far) code for customizing of logging levels
and possible outputs. Macro log(..) were introduced and should be
called in all places where rasdaemon could send some output either
to console or syslog.
Systemd unit file was added, so systemd will guarantee that daemon
will be restarted immediately after stop or killing.
Signed-off-by: Petr Holasek <pholasek@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>