Changes in version 0.4.3 (2013-04-10)                  

    o   Fixed registration of S3 methods.  

                 Changes in version 0.4.2 (2013-03-21)                  

    o   Added new function 'nbinomial' to fit negative binomial regression
	with some extra reporting, eg Pearson residuals.  

    o   Extended summary.msme to optionally report Pearson residuals.  

    o   Added new references to help files and rejigged data examples to use
	msme functions.

    o   Now exporting asymptotic likelihood ratio test function, alrt.