Added usage of timeouts for all of the tests. Fixed reported bugs PRD-1193.
Merge branch 'master' of github.com:Mirantis/fuel-ostf-tests into error-messages

Conflicts:
	fuel_health/tests/sanity/test_sanity_identity.py
	fuel_health/tests/sanity/test_sanity_infrastructure.py
	fuel_health/tests/sanity/test_sanity_networking.py
	fuel_health/tests/smoke/test_create_volume.py
	fuel_health/tests/smoke/test_image_actions.py
	fuel_health/tests/smoke/test_nova_create_instance_with_connectivity.py
Fixed tests with floating ips.