[nailgun] serialization of node interfaces should be versioned

[Aleksey Kasatkin]

We have new field for bonds and NICs in 6.1:
"interface_properties"

This field should be serialized for 6.1 envs and not for any earlier envs.
UI will show and update corresponding properties when the field is serialized.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/166267

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/166267
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=b797c247473d23b98508a6c011220793a1c7524c
Submitter: Jenkins
Branch: master

commit b797c247473d23b98508a6c011220793a1c7524c
Author: Aleksey Kasatkin <email address hidden>
Date: Fri Mar 20 17:13:11 2015 +0200

    Introduce versioning of serializers for node's interfaces

    Closes-Bug: #1433707

    Change-Id: Ie497bc2830d7603f9c07e5753cafe5a9ea3fae20

[Maksym Strukov (unbelll)]

Verified as fixed in 6.1-432

{"build_id": "2015-05-18_03-43-53", "build_number": "432", "release_versions": {"2014.2-6.0": {"VERSION": {"build_id": "2014-12-26_14-25-46", "ostf_sha": "a9afb68710d809570460c29d6c3293219d3624d4", "build_number": "58", "api": "1.0", "nailgun_sha": "5f91157daa6798ff522ca9f6d34e7e135f150a90", "production": "docker", "fuelmain_sha": "81d38d6f2903b5a8b4bee79ca45a54b76c1361b8", "astute_sha": "16b252d93be6aaa73030b8100cf8c5ca6a970a91", "feature_groups": ["mirantis"], "release": "6.0", "fuellib_sha": "fde8ba5e11a1acaf819d402c645c731af450aff0"}}, "2014.2.2-6.1": {"VERSION": {"build_id": "2015-05-18_03-43-53", "build_number": "432", "api": "1.0", "fuel-library_sha": "1621cb350af744f497c35f2b3bb889c2041465d8", "nailgun_sha": "076566b5df37f681c3fd5b139c966d680d81e0a5", "feature_groups": ["mirantis"], "openstack_version": "2014.2.2-6.1", "production": "docker", "python-fuelclient_sha": "38765563e1a7f14f45201fd47cf507393ff5d673", "astute_sha": "cb655a9a9ad26848bcd9d9ace91857b6f4a0ec15", "fuel-ostf_sha": "9ce1800749081780b8b2a4a7eab6586583ffaf33", "release": "6.1", "fuelmain_sha": "0e970647a83d9a7d336c4cc253606d4dd0d59a60"}}}, "auth_required": true, "api": "1.0", "fuel-library_sha": "1621cb350af744f497c35f2b3bb889c2041465d8", "nailgun_sha": "076566b5df37f681c3fd5b139c966d680d81e0a5", "feature_groups": ["mirantis"], "openstack_version": "2014.2.2-6.1", "production": "docker", "python-fuelclient_sha": "38765563e1a7f14f45201fd47cf507393ff5d673", "astute_sha": "cb655a9a9ad26848bcd9d9ace91857b6f4a0ec15", "fuel-ostf_sha": "9ce1800749081780b8b2a4a7eab6586583ffaf33", "release": "6.1", "fuelmain_sha": "0e970647a83d9a7d336c4cc253606d4dd0d59a60"}

Nodes in 6.1 cluster has interface_properties (can be checked here http://10.109.0.2:8000/api/nodes/XXXX/interfaces).
Nodes in 6.0 upgraded clusters hasn't interface_properties