Change default plot to PNG format, Resolve #460 Changes to be committed: 	modified:   functions/dsAnalyze.m
Change default plot to PNG format, Resolve #460
Changes to be committed:
	modified:   functions/dsAnalyze.m

DynaSim/DynaSim,asoplata/DynaSim,DynaSim/DynaSim,asoplata/DynaSim,asoplata/DynaSim,DynaSim/DynaSim,DynaSim/DynaSim,asoplata/DynaSim,asoplata/DynaSim,DynaSim/DynaSim