flow_match: Match on ARP Opcode
In ARP opcode flow_match test flow entry should look for specific DL_TYPE
testutils: send barrier after deleting all flows

If a flow-add is sent immediately after a flow-delete-all, the switch can
legitimately include the new flow in the set of flows deleted. A barrier must
be used to serialize these operations.
Merge pull request #54 from poolakiran/match_arp_opcode

flow_match: Match on ARP Opcode
Merge pull request #53 from dtalayco/master

changes from loxigen e8e6401509
Merge pull request #55 from rlane/barrier-after-delete

testutils: send barrier after deleting all flows
update pyloxi to 46b7804026447644fec44c0ad517b41844eeb91b
testutils: support of13 in delete_all_flows
testutils: remove incompatible wildcard check for OF 1.3

This needs to be replaced with code that uses the table features reply to
determine the fields that cannot be matched.
testutils: update port_config_get/set for OF 1.3
testutils: update verify_packet_in for OF 1.3
testutils: update get_stats to support OF 1.3
add basic OF 1.3 tests

Many of these tests were ported from the CPqD fork of oftest.

I've been running them against ofsoftswitch13. All pass except for
PacketInMiss.
basic-1.3: fix comments, log messages, and constants
basic-1.3: consistently use OFP_NO_BUFFER
Update controller.py

Bugfix:We cannot poll the OFPT_HELLO message using the poll function if exp_msg=None.
Merge pull request #56 from rlane/of13

OpenFlow 1.3 basic test suite
Update controller.py
Merge pull request #57 from sumithdev09/master

Polling Hello Message
basic-1.3: add OutputWildcard and PacketInWildcard tests

These tests check that a match-all (but not table-miss) flow matches packets.