Changes in version 1.3.0                        

    o   This version includes new nonlinear growth models:
	Janoschek

    o   `mitscherlich` alias to the `mitcherlich` function

                 Changes in version 1.2.0 (2013-11-23)                  

    o   This version includes new nonlinear growth models:
	Blumberg

    o   Mitcherlich growth model can be called using mitcherlich or mitscherlich

    o   Include the inverse functions for the models

                        Changes in version 1.1.0                        

    o   This version includes new nonlinear growth models:
	Brody
	Log-logistic,
	Morgan-Mercer-Flodin,
	Schnute,
	Stannard.

                 Changes in version 1.0.0 (2013-08-30)                  

    o   `growthmodels` includes the following nonlinear growth models:
	Chapman-Richards,
	Generalised Logistic,
	Generalised Richard,
	Gompertz,
	Logistic,
	Mitcherlich,
	Monomolecular,
	Negative exponential,
	Richard’s,
	von Bertalanffy,
	Weibull.