upgrade devstack to latest stable hyperkube version

[Irena Berezovsky]

To be able to run devstack environment with recent kubernetes version (1.6), hyperkube version should be updated to 1.6.2.
since K8s 1.6 version requires service accounts to be defined, devstack scripts should be updated to add kuryr-kubernetes service accounts.

[Kirill Zaitsev (kzaitsev)]

there is a 1.6.3 release although they've seemingly introduced a regression there. So maybe 1.6.2 is indeed a good option.
for reference:
https://console.cloud.google.com/gcr/images/google-containers/GLOBAL/hyperkube?pli=1
https://github.com/kubernetes/kubernetes/releases/tag/v1.6.3

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/465657
Committed: https://git.openstack.org/cgit/openstack/kuryr-kubernetes/commit/?id=167d3ac010d82be753c3f08daa2a252f5cd1c434
Submitter: Jenkins
Branch: master

commit 167d3ac010d82be753c3f08daa2a252f5cd1c434
Author: Irena Berezovsky <email address hidden>
Date: Wed May 17 17:16:32 2017 +0300

    Bump the devstack HYPERKUBE version to be v1.6.2

    Closes-Bug: #1691103
    Change-Id: I4199f0660db1ffae36a58af1c6aeb51dd1c0bec2

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kuryr-kubernetes 0.2.0 release.