this is causing formats like application/json to be forced into string JSON

model_dictize.py

def _unified_resource_format(format_):
    ''' Convert resource formats into a more uniform set.
    eg .json, json, JSON, text/json all converted to JSON.'''

    format_clean = format_.lower().split('/')[-1].replace('.', '')
    formats = {
        'csv' : 'CSV',
        'zip' : 'ZIP',
        'pdf' : 'PDF',
        'xls' : 'XLS',
        'json' : 'JSON',
        'kml' : 'KML',
        'xml' : 'XML',
        'shape' : 'SHAPE',
        'rdf' : 'RDF',
        'txt' : 'TXT',
        'text' : 'TEXT',
        'html' : 'HTML',
    }
    if format_clean in formats:
        format_new = formats[format_clean]
    else:
        format_new = format_.lower()
    return format_new