Updated env vars recognised by tox

tox.ini

@@ -8,7 +8,7 @@ envlist = py27, py36, pypy
 
 [testenv]
 commands = {envpython} -m coverage run --branch --source=cloudbridge --omit=cloudbridge/cloud/interfaces/* setup.py test
-passenv = AWS_ACCESS_KEY AWS_SECRET_KEY OS_AUTH_URL OS_PASSWORD OS_TENANT_NAME OS_USERNAME OS_REGION_NAME NOVA_SERVICE_NAME CB_IMAGE_AWS CB_INSTANCE_TYPE_AWS CB_PLACEMENT_AWS CB_IMAGE_OS CB_INSTANCE_TYPE_OS CB_PLACEMENT_OS CB_TEST_PROVIDER CB_USE_MOCK_PROVIDERS
+passenv = AWS_ACCESS_KEY AWS_SECRET_KEY OS_AUTH_URL OS_PASSWORD OS_PROJECT_NAME OS_USERNAME OS_REGION_NAME OS_USER_DOMAIN_NAME OS_PROJECT_DOMAIN_NAME NOVA_SERVICE_NAME CB_IMAGE_AWS CB_INSTANCE_TYPE_AWS CB_PLACEMENT_AWS CB_IMAGE_OS CB_INSTANCE_TYPE_OS CB_PLACEMENT_OS CB_TEST_PROVIDER CB_USE_MOCK_PROVIDERS
 deps =
     -rrequirements.txt
     coverage