cccl: Ignore -fno-strict-aliasing.

Add a case for the gcc flag fno-strict-aliasing into cccl
Under MSVC  Strict aliasing is off by default.

Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
flow: Support OF1.5+ (draft) actset_output field.

This field allows a flow table to match on the output port currently in the
action set.

OF1.3 and OF1.4 should use ONFOXM_ET_ACTSET_OUTPUT; OF1.5+ should use
OXM_OF_ACTSET_OUTPUT.  The current patch uses the former for all
versions.

ONF-JIRA: EXT-233
Signed-off-by: Ben Pfaff <blp@nicira.com>