ng_bridge with igmp snooping

[iprebeg]

Hi all

I'm sending out first public preview of ng_bridge enhanced with IGMP
snooping extensions.
Code can be obtained from perforce (/depot/user/iprebeg/ngb) or you can
grab tarball from
http://trinity.zesoi.fer.hr/~iprebeg/code/ngb.tar.bz2

I would really like to get an early feedback to know in which direction
to go with it now.
Please send your comments, impressions.

Work is done under Marko Zec's menthorship.