dmm_1.6-1	S3 plotting method plot.dmm() added
                Attributes renamed in dmm object  dme.yyd -> dme.psi
                                                  dme.eamt -> dme.wmat

dmm_1.6-2	sheep.df dataset modified to fix pedigree error
		pedcheck() modified to detect Sex clashes in pedigree
		dmmOverview.pdf modified to cover mods to sheep.df
		tstmo1.df dataset sexes corrected to suit new pedcheck()
		gresponse.dmm() rewritten to include individual additive 
		sexlinked and maternal additive sexlinked effects.
		summary.gresponse.dmm() added
                print.gresponse.dmm() rewritten
                part.add() added - hidden function 
		make.dmmobj() added - allows users of gresponse() to make 
                a dmm object from external data, instead of using a dmm output.

dmm_1.6-3	warcolak.convert() modified to match nadiv_2.14.0  
                Section 5.3 rewritten to match nadiv_2.14.0
		Note added on  sex specific parameters in Sections 5.3 and 9
		Imported dependencies added to NAMESPACE

dmm_1.6-4	siga.posdef modified to set symmetric=T on calling eigen()
		dmsolve()  message when fixed effects not of full rank improved
		varz() fix bug when first arg is NA

dmm_1.7-1	traits pairwise (option dmmarray) and blockwise (option dmmblockarray)
