Changes to Version 0.3.0

	added 3 dataframes as Jpopl, Jfert and Jlife and the demographic model functions as Siler, fitSiler, GompertzMakeham, fitGM, Denny, fitDenny, CT, fitCT, Hadwiger, fitHad, lxtodx, dxtolx, qxtodx, dxtoqx, qxtomx, mxtoqx, qxtolx, lxtoqx, uxtoqx, lifetable, clifetable.

Changes to Version 0.2.4

	added export entries for Japanese population dataframes in NAMESPACE file.

Changes to Version 0.2.3

	added 2010's Japanese population data in JASM and Jpop

Changes to Version 0.2.2

	added the mhchart function
	added 2010's Japanese vital statistics
	added NAMESPACE
