Merge pull request #8 from vmahuli/master

adding neutron plugin to CI
Merge pull request #9 from vmahuli/master

fixing flake8 tests
fix subunit2html permission
Test systest sanity job for scale, once every 10th build
Test systest sanity job for scale, once every 10th build
Archive failed test logs in /ci-admin/failed_unit_test_logs/.
fix a typo
Fix a typo in tar command
add some delay
adding nova vif driver and sandesh to ci