Intel support is now fully functional. This mostly invovled making the
snmpit_intel module conform to the same API as snmpit_cisco. Intels VLANs are now done per port rather than per MAC. This should give experimenters more flexibility on the experimental net, and is more consistent with the way that VLANs are done on other switches. snmpit_intel_stack will need to undergo minor work to support stacks of multiple switches.