Updated ifconfig to -current
Updated sys to -current
Update sys to -current
Prepare MPLS code base to support wire

Initial preparations to avoid duplicated code between mpe and wire.
Implemented wire datapath pseudo device

Initial implementation of wire pseudo device to use with VPLS.
Added renato@'s L2VPN LDPd patch
Implemented ifconfig wire integration
Added wire reference to ifconfig man page
Added support for VLAN