Merge into master from pull request #82:
update pyloxi to c4da04db638135e618763773bd03371db1c9b7fd (https://github.com/floodlight/oftest/pull/82)
testutils: use unicast MACs in simple_eth_pkt

This "simple" function shouldn't create multicast packets. Changed to use the
same MACs as the other packet creation functions.

Reported by Tony van der Peet <tony.vanderpeet@gmail.com>.
Merge into master from pull request #84:
testutils: use unicast MACs in simple_eth_pkt (https://github.com/floodlight/oftest/pull/84)
Fix load.FlowRemovedLoad test.
Merge into master from pull request #85:
Fix load.FlowRemovedLoad test. (https://github.com/floodlight/oftest/pull/85)
update pyloxi to b8957d6b02d68b19fa531bdfe89783a13d2d4f7f
groups-1.3: use group_mod subclasses