oft: Add 'disable-ipv6' command line option
packet.py: Skip IPv6 import if IPv6 disabled
Merge into master from pull request #116:
oft: Add 'disable-ipv6' option (https://github.com/floodlight/oftest/pull/116)
update pyloxi to floodlight/loxigen-artifacts@57f3c38ed3f04678bc250d086e150582269280d5
Merge into master from pull request #117:
update pyloxi to floodlight/loxigen-artifacts@57f3c38ed3f04678bc250d086e... (https://github.com/floodlight/oftest/pull/117)
oft: add --profile command line option

This produces a Python profile of the testcases. The resulting profile.out file
can be read with the pstats module, RunSnake, or pyprof2calltree.
oft: add --default-negative-timeout command line option

This option controls how long OFTest waits for an event that we don't expect to
occur. It replaces several hardcoded values.
add latency tests

These tests are mostly helpful for deriving --default-negative-timeout.
testutils: fix typo
Merge into master from pull request #121:
Profiling and configurable negative timeouts (https://github.com/floodlight/oftest/pull/121)
testutils: remove out_port arg from verify_flow_stats

This was never used and caused problems with OF 1.3.
add flow_mod testsuite

Just one test for now, which checks overwrite behavior.
Merge into master from pull request #122:
flow overwrite testcase (https://github.com/floodlight/oftest/pull/122)