Changes in version 2016-10.3                      

    o   name change to nlsr and consequent changes

    o   minor fixes

                      Changes in version 2014-7.27                      

    o   Deriv() etc.

    o   model2rjfun() etc. 

    o   changes to nlsrxb structure

                      Changes in version 2014-7.19                      

    o   The parameters MUST be named when setting up model2resfun etc.,
	but the resulting function can be called with an un-named
	vector of parameters.

    o   Name reset to reflect intent to substitute for nls()

    o   wrapnls replaced by wrapnlsr

    o   use of ... args replaced with data = mydata (dataframe)

    o   1-sided models which start with the tilde are now allowed in
	nlsr functions.

                      Changes in version 2013-8.26                      

    o   Relative offset convergence test (not exactly as in nls())
	residual and jacobian in summary & print methods

    o   coef() method in nlmrt.R so names carried through

    o   summary() and print() cleanup

    o   partial and minor documentation improvement

                      Changes in version 2013-8.10                      

    o   fix line length issue in examples

                      Changes in version 2013-7.9                       

    o   Added control list elements to .Rd files for nlxb and nlfb, 
	with reference in wrapnls.

    o   Put in a test for very small sum of squares in nlfb and nlxb.

                      Changes in version 2013-3.16                      

    o   Result element coeffs changed to coefficients. 
	This alters wrapnls.R code also.

                      Changes in version 2012-9.03                      

    o   More features in summary().

    o   summary() for output from different functions.
	Should display constraints if possible as per JNMWS codes.
	Warnings / Notes fixed re: dependencies in vignette, methods.

    o   Sort out display in vignette
	Note warning "unstated dependencies in vignette"

                      Changes in version 2012-8.12                      

    o   Bounds and masks examples in nlmrt-vignette.

                      Changes in version 2012-8.04                      

    o   Vignette nlmrt-vignette updated.

    o   Functions to convert expression to residual, Jacobian,
	sum of squares and gradient functions (for use with optimx
	or nlmrt:nlfb or minpack.lm:nls.lm

    o   The examples in ./inst/examples/ are calling routines that
	have been renamed. These have, I believe, been fixed.

    o   nlfb() needs an explicit Jacobian function and needs a way
	to compute numerical Jacobian if omitted. Fixed, I believe.

                      Changes in version 2012-6.01                      

    o   Removed diagnostic printout of bdmsk in nlfb

                      Changes in version 2012-4.15                      

    o   Added nlfb to allow functions for residual and Jacobian.
	These are developed from the expression for the residuals as
	a model in nlxb. 

    o   Bounds now in wrapnls.

    o   Note misleading trace output in nls() runs with bounds.