Tests using vi_*_pg fixture now use intel_*_pg

- Addresses a change in fixture names merged in
  https://github.com/RedHatQE/cfme_pages/pull/203
Merge pull request #211 from seandst/tests-renamed-fixtures

Tests using vi_*_pg fixture now use intel_*_pg
Update ovirt-engine-sdk-python in requirements.txt
Merge pull request #212 from bcrochet/ovirt-req-fix

Update ovirt-engine-sdk-python in requirements.txt