Get instance networking information from Neutron

project/instances, admin/instances and the instance details page
all get networking information from Nova. However, with Neutron
enabled, floating IP associations are done direcly with Neutron,
meaning that Nova's DB will fall out of sync and thus the GUI
won't reflect successful floating IP associations until Nova
polls Neutron again and updates its DB. The polling can take
up to several minutes to complete for consecutive floating IP
operations.

The solution is to update instances' networking information from
Neutron immediately after the call to list Nova instances.

Closes-Bug: #1265032
Change-Id: I0382fa9a4a9fff21e7b4d05cd3b76783f826735f
Test coverage improvement for FWaaS screens

This patch set adds 'delete' ans 'update_get' tests
for policies, rules and firewalls and removes some
redundant code from another tests.

Closes-Bug: #1274136

Change-Id: I5e00419621fd6aa14ec82a5a19887754e03c1d0e
Clear date picker fields every time 'Other' Period is selected

In subsequent selections of 'Other' from Period field in Admin > Resources
Usage Overview panel previously picked dates for From and To fields remain.
This patch is to clear those fields every time 'Other' is selected, as
preserving the values could be confusing.

Change-Id: If82aa26cd453a038fb8821a4c33f979dd4dbb8a9
Closes-Bug: #1280441
Replace assertEqual(None, *) with assertIsNone in tests

Replace assertEqual(None, *) with assertIsNone in tests to have
more clear messages in case of failure.

Change-Id: I2506fe57adb98c52147138d8eb6c0254423ffdd7
Fix submit button in overview

Go to Admin -> Overview, or Project -> Overview select a date,
and click "Submit" button,then the "Submit" button is disabled,
but the Usage info below doesn't seem to respond to the new date
range accordingly.

Change-Id: I50466d748884c3b327a2517d5d1136137b5259f6
Closes-Bug:#1270977
Merge "Get instance networking information from Neutron"
typos in workflows/views.py

  Fixed a few typos in workflows/views.py

  Closes-Bug: #1281276

Change-Id: Ib2560be467cb05e175545772eaa3ca0d6666e52c
Merge "Test coverage improvement for FWaaS screens"
Merge "typos in workflows/views.py"
Merge "Clear date picker fields every time 'Other' Period is selected"