Add uci config support.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

Even on a powerful platform a collectd process'
activities are sometimes affecting throoughput and
latency. This is a backgroud process, that should not
be running with default priority.
Even if it is a little deplayed, that is not a worry in
this case. The routing should be the main priority,
stats collection can wait a bit.

Tested on Netgear R7800
Signed-off-by: Marc Benoit <marcb62185@gmail.com>
Make niceness more moderate, bump version.
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

With the conversion to procd a required mkdir has been dropped, readd it.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

Change collectd to use procd for startup.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>