Param for list of modeltypes instead of 1 modeltype

[dafnevk]

When I specify the model_types, I get the error:

UnboundLocalError                         Traceback (most recent call last)
<ipython-input-11-c051e690e7e9> in <module>
      5                                   number_of_models = 2,
      6                                        metrics=[metric],
----> 7                                        model_types=['cnn'])

~/nlesc/mcfly/mcfly/modelgen.py in generate_models(x_shape, number_of_classes, number_of_models, **kwargs)
    198             (generate_model(x_shape, 
    199                             number_of_classes,
--> 200                             metrics=settings['metrics'], **hyperparameters),
    201              hyperparameters, current_model_type))
    202     return models

UnboundLocalError: local variable 'hyperparameters' referenced before assignment

[florian-huber]

Done as part of new mcfly release.