update sha1 for switchlight-common to include latest icmpa changes
Merge into master from pull request #100:
update submodules (https://github.com/floodlight/ivs/pull/100)
update Sha1 of switchlight-common to point to icmpa bug fix
update loxigen-artifacts

* submodules/loxigen-artifacts 12d3274...0b4fb63 (1):
  > Artifacts from https://github.com/floodlight/loxigen/compare/30da69de767f2a2bd5ff10a8114d876d92cd19b6...51cdfba106a98177ff7e816fe9ecd335a3c68121
OVSDriver: support OF_INSTRUCTION_BSN_DHCP_OFFLOAD
Merge into master from pull request #101:
decode OF_INSTRUCTION_BSN_DHCP_OFFLOAD (https://github.com/floodlight/ivs/pull/101)
Merge into master from pull request #102:
update sha1 for switchlight-common to include latest icmpa changes (https://github.com/floodlight/ivs/pull/102)
OVSDriver: factor out pktin action translation
OVSDriver: add IND_OVS_ACTION_CHECK_NW_TTL
Merge into master from pull request #103:
add check_nw_ttl action (https://github.com/floodlight/ivs/pull/103)
update Sha1 of switchlight-common to point to latest fix
OVSDriver: add interfaces for pipeline to lookup groups
OVSDriver: remove group type check on group add

We now support SELECT and INDIRECT groups.
OVSDriver: increase number of tables
OVSDriver: move pipeline function declarations to ivs.h
Merge into master from pull request #104:
improve group support (https://github.com/floodlight/ivs/pull/104)
ivs: fix double-initialization of pipeline
Merge into master from pull request #105:
ivs: fix double-initialization of pipeline (https://github.com/floodlight/ivs/pull/105)
ivs: move CFR functions from OVSDriver to ivs

A few macros needed to be moved as well.
pass ind_ovs_parsed_key to pipeline instead of CFR

This is a step on the path to removing the CFR as a core datastructure. The
pipeline can translate the OVS key to a CFR if it needs to.