Merge into master from pull request #87:
update pyloxi (https://github.com/floodlight/oftest/pull/87)
Merge into master from pull request #88:
update pyloxi (https://github.com/floodlight/oftest/pull/88)
VPI-based platform support.
Merge into master from pull request #90:
VPI-based platform support. (https://github.com/floodlight/oftest/pull/90)
update pyloxi to 026ff024585f1588a7f11fa4c1a9a48d44dc098d