buildNodePackage: Utilize the node setup hook

Signed-off-by: Shea Levy <shea@shealevy.com>
Adding ahcpd.
Adding babeld.
tcpdmup/libpcap udpate
digikam: enable parallel building
libgphoto2: adding a 2.4 version, for kde 4.7 and 4.8.
firefox update to 21.0
Fixing firefox reference