dbus host building

Enable dbus host building ( some packages on other feed(s) need dbus on
host side, since packages need to be compiled natively before cross
compiling)
Merge pull request #555 from rpi-openwrt/master

dbus host building
ntpd: fix a small typo in the default description

Reported by amanual on IRC, thanks.
While at, update copyright timestamp.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>