Update of Dutch translation.
Add Dutch squid error messages.
Fix typo in Dutch translation.
curl: Update to 7.29.0.

Security fix for http://curl.haxx.se/docs/adv_20130206.html.
QoS: Make fq_codel queues smaller and remove HTB qdisc when QoS stops.

  http://patchwork.openwrt.org/patch/2681/
qos: Remove advanced settings.