Version 1.1-8
	o The new function wfct for easy specification of weights in nls and
	  nlsLM is now included.  
Version 1.1-7 
	o changed the License to GPL-3 + the terms specified in the file 
          LICENSE, which give the original copyright distributed with  
          the minpack Fortran source.  This is possible given Clause 7 in 
	  GPL-3.  
Version 1.1-6
	o Support for lower and upper bounds added
	o Added ‘nlsLM’, a modified version of ‘nls’ that uses ‘nls.lm’ for
          fitting.