Gutyán Gábor / circlestack

Closes #321

Node fixes

- Labels in node box weren't aware of the new node states
- The search input disappeared when switching view modes
- Fixed filtering by nodes on vm list

See merge request !235

Display subsubactivities

See merge request !233

node1 vs node11

also fix the search button

Conflicts:
	circle/dashboard/views/vm.py

closes #305

Disk delete as op view

Closes #201

See merge request !228

Default values in vm-op forms

closes #301

See merge request !232

m = MagicMock(spec=Instance, name="asd"); m.name -> AttributeError so I have
to set it in an other statement

- don't refresh the page immediately when the response
  comes back, wait til all the activity finishes

Sub- and Remote Operations

closes #304

requires [vmdriver!4](circle/vmdriver!4)

See merge request !220

Feature local logo

```bash
mkdir -p ~/site-circle/static
wget -O ~/site-circle/static/local-logo.png https://www.vik.bme.hu/static/img/default/logo.png
```

See merge request !229

Unhandled exception: _get_remote_args() got an unexpected
          keyword argument 'activity'

Conflicts:
	circle/vm/models/instance.py
	circle/vm/tests/test_models.py