CIRCLE / cloud

skip steps if the user doesn't have any

- fix the skip button
- add name/description step
- add renew step

Conflicts:
	circle/dashboard/static/dashboard/dashboard.css
	circle/dashboard/views.py

Conflicts:
	circle/dashboard/views/vm.py

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](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

Client cookie timer correction

Small correction :)

See merge request !226

Fix http500

🚧 tests

See merge request !223