ok = pwReload(indices, secondModel, arguments)
Reloads models specified by their index in the repository list
or all currently selected models if no indices argument is given.
secondModel Optional path to a second model which will be included
into the original model(s). Default: 
arguments Cell array. See pwAddModel.
ok True, if all models were reloaded successfully.
If a model is reloaded, all models with the same model ID are automatically
reloaded, too. This is important in order to synchronize the content of
compiled model files (given by the model ID) and the models currently loaded.