Change Anaylser API: model() -> analyserModel()

[hsorby]

   /**
     * @brief Get the analysed model.
     *
     * Get the analysed model that is the result of the model analysis. This
     * allows to retrieve some information about the type of the model, its
     * variable of integration, states, variables, equations, and whether it
     * needs some specific mathematical functions.
     *
     * @return The analysed model for the @c Model analysed by this @ref Analyser.
     */
    AnalyserModelPtr model() const;

The Analyser class has the method model() which returns an AnalyserModel. I think the method should be called analyserModel().