Sync bridging code from m0n0 in relation to spoof checks, etc.  A number of items where fixed in their tree after we forked.
Sync bridging code from m0n0 in relation to spoof checks, etc.  A number of items where fixed in their tree after we forked.

Thanks to Chris Buechler for the heads up.

pfsense/pfsense,pfsense/pfsense,NOYB/pfsense,NewEraCracker/pfsense,ptorsten/pfsense,pfsense/pfsense,pfsense/pfsense,ch1c4um/pfsense,jxmx/pfsense,dennypage/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,phil-davis/pfsense,BlackstarGroup/pfsense,BlackstarGroup/pfsense,ch1c4um/pfsense,ch1c4um/pfsense,phil-davis/pfsense,BlackstarGroup/pfsense,dennypage/pfsense,brunostein/pfsense,jxmx/pfsense,dennypage/pfsense,NewEraCracker/pfsense,NOYB/pfsense,ch1c4um/pfsense,brunostein/pfsense,jxmx/pfsense,NOYB/pfsense,brunostein/pfsense,dennypage/pfsense,ptorsten/pfsense,phil-davis/pfsense,BlackstarGroup/pfsense,ptorsten/pfsense,NewEraCracker/pfsense