[patches] add two ipv6 nameservers

On the second hackathon we agreed to add two ipv6 nameservers:

* 2001:4ce8::53 (as250)
* 2001:910:800::12 (french data network - http://www.fdn.fr/)

Closes #15 (https://github.com/freifunk-berlin/firmware/issues/15)
[patches] fix firstboot checkpasswd condition

True seems be the only valid true in luci lua
fix multiple policyrouting rules

fixes #147
fix policyrouting typo

should really fix #147
[patches] backport support for ubnt loco xw

This backports support for Ubiquit Nanostation XW from Chaos Calmer. The
following commits have been backported:

* http://git.openwrt.org/?p=openwrt.git;a=patch;h=e92748a8b17f386a45207316e3af7c686ed887ee
* http://git.openwrt.org/?p=openwrt.git;a=patch;h=3d217029ea89de6520e01a471b6dc31924f17327

Fixes #26.