lighttpd: add www/{logs,var} symlinks

We do this unconditionally, as it certainly doesn't hurt matters to be writing
its temporary and log files to standard paths. In fact, we should pursue
moving /www into /srv for FHS compliance.

Signed-off-by: Christopher Larson <kergoth@gmail.com>
Add a convenience class and use it for dbus

Signed-off-by: Christopher Larson <kergoth@gmail.com>
alsa-utils: handle /var/lib/alsa

Signed-off-by: Christopher Larson <kergoth@gmail.com>