preliminary drf3 support

[ariovistus]

No description provided.

[j0hnsmith]

I get

rest_framework.fields.empty instance at is not JSON serializable

I can't seen any swagger refs in the stack trace. I'll investigate further.

[j0hnsmith]

Here's a little more.

renderer_context    
{u'args': (),
 u'kwargs': {'path': u'api/v1'},
 u'request': <rest_framework.request.Request object at 0x7f6876daebd0>,
 u'response': <rest_framework.response.Response object at 0x7f687c0d1b10>,
 u'view': <rest_framework_swagger.views.SwaggerApiView object at 0x7f687c07c190>}
self    
<rest_framework.renderers.JSONRenderer object at 0x7f6876daed90>
separators  
(',', ':')
data    
{'apiVersion': '',
 'apis': [{'description': u'',
           'operations': [{'method': u'GET',
                           'nickname': u'Api_Root',
                           'notes': '  \n',
                           'summary': '',
                           'type': None}],
           'path': u'/api/v1/'},
          {'description': u'',
           'operations': [{'method': u'POST',
                           'nickname': u'Share',
                           'notes': '  \n',
                           'parameters': [{'defaultValue': <rest_framework.fields.empty instance at 0x7f6876fcfb00>,
                                           'description': None,
                                           'format': 'string',
                                           'name': 'server',
                                           'paramType': 'form',
                                           'required': True,
                                           'type': 'string'},
                                          {'defaultValue': <rest_framework.fields.empty instance at 0x7f6876fcf2d8>,
                                           'description': None,
                                           'format': 'string',
                                           'name': 'share',
                                           'paramType': 'form',
                                           'required': True,
                                           'type': 'string'},

[ch4rlyp]

I've probably the same issue: #163