Edits assert method

Makes changes in assert method in
tests/hardware/pollsters/test_util.py.

Replaces assertEqual(None, s.user_id)
on assertIsNone(s.user_id).

Change-Id: Iafa437bcd2408845ba6b443474fcf838eae109e4
Edits assert methods

Makes changes to
tests/ipmi/platform/test_ipmi_sensor.py.

Replaces assertTrue(sensors == {}) with
assertEqual({}, sensors).

Change-Id: I9a333ce08719462aa53ed8762b87b81d5769154c
Edits assert methods

Makes changes to
tests/ipmi/platform/test_intel_node_manager.py.

Replaces assertTrue(variable, {}) with
assertEqual({}, 'variable'), where
'variable' is temperature and power.

Change-Id: Idcd258bb6be4aebef5bcfc91cedb91cb14c69950
Edits assert methods

Makes changes to 3 files:
tests/network/services/test_fwaas.py
tests/network/services/test_lbaas.py
tests/network/services/test_vpnaas.py

Replaces assertTrue(a not in b) with assertNotIn(a, b),
and assertTrue(a in b) with assertIn(a, b).

Change-Id: I01e683569d9b8116f2dbadbf8fe4cb0024625178
Merge "Edits assert methods"
Merge "Edits assert methods"
Merge "Edits assert methods"
Edits assert methods

Makes changes to the following files:
  tests/agentbase.py
  tests/alarm/partition/test_coordination.py
  tests/api/v2/test_alarm_scenarios.py
  tests/api/v2/test_event_scenarios.py
  tests/api/v2/test_list_resources_scenarios.py
  tests/api/v2/test_statistics_scenarios.py
  tests/compute/virt/vmware/test_inspector.py
  tests/ipmi/platform/test_ipmi_sensor.py
  tests/objectstore/test_swift.py
  tests/publisher/test_file.py
  tests/storage/test_storage_scenarios.py

Replaces assertTrue(a in b) with assertIn(a, b).

Change-Id: I00d6b194dab0026558376e2fb052ff7b094dff32
refresh ceilometer architecture documentation

there are stale descriptions in the architecture documentation
compared to what currently exists. this patch:
- updates/removes incorrect details
- updates architecture diagram
- makes note of horizontal scaling design

Change-Id: I5debdcb2c34d0c2e1e637d3d75db0dfbc44b9124
Merge "Edits assert methods"
Merge "refresh ceilometer architecture documentation"