Failure while changing number of Nodes

[Dariusz Smigiel]

Steps to reproduce:
1. Go to Infrastructure tab.
2. Try to change number of Nodes for deployment.
3. There is still: "Validating the Plan" and traceback in console:

Internal Server Error: /infrastructure/
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 111, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/root/horizon/horizon/decorators.py", line 36, in dec
    return view_func(request, *args, **kwargs)
  File "/root/horizon/horizon/decorators.py", line 84, in dec
    return view_func(request, *args, **kwargs)
  File "/root/horizon/horizon/decorators.py", line 52, in dec
    return view_func(request, *args, **kwargs)
  File "/root/horizon/horizon/decorators.py", line 36, in dec
    return view_func(request, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py", line 69, in view
    return self.dispatch(request, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py", line 87, in dispatch
    return handler(request, *args, **kwargs)
  File "/root/tuskar-ui/tuskar_ui/infrastructure/overview/views.py", line 263, in post
    }), mimetype='application/json')
  File "/usr/local/lib/python2.7/dist-packages/django/http/response.py", line 318, in __init__
    super(HttpResponse, self).__init__(*args, **kwargs)
TypeError: __init__() got an unexpected keyword argument 'mimetype'
[07/Apr/2015 11:36:35] "POST /infrastructure/ HTTP/1.1" 500 34835

[Dariusz Smigiel (smigiel-dariusz)]

Tested with OSP7 Director Beta2 which uses Tuskar-UI as frontend. This bug doesn't occur any longer.