ChangeLog
-Version 0.9.3
	Revision to lifecontingencies vignettes to cope with 
-Version 0.9.2
	rLifeContingencies has been parallelized
	updated demoIta dataset
	added n-year term insurance function AExn
	Final revision of package vignettes
-Version 0.9.1
	Conventions on parameters made uniform.
	Minor changes in the vignettes and functions documentation. 
-Version 0.9
	Adding rLifeContingencies function, to simulate random variates from life contingencies distribution.
	Deep revision of vignettes.
	Various bug fixed.
-Version 0.1.1
	Minor fixes
	Set R required version to 2.14
-Version 0.1
	Deep revision of vignettes
	Add increasing annuity function, Iaxn
	Minor fixes
-Version 0.0.7
	Added rLife function to simulate random times until deaths
	Improved financial mathematics functions
	Improved documentation and vignettes
-Version 0.0.6
	Improved documentation
	Improved financial functions
	Added function to obtain lifetables from raw survival or deaths probabilites
-Version 0.0.5
	Added methods for lifecontingencies objects
	improved vignettes (added JSS template).
-Version 0.0.4
	Improved documentation
	Added demographic functions
	Added US Social Security life tables.
-Version 0.0.3
	Improved documentation
	Add some multiple life functions
	fix a bug in method getOmega
-Version 0.0.2
	Specific interest rate can be given directly to the actuarial life contingencies functions that override lifetable one
	Update Axn for fractional ages
	pxn function now allows non integer x
	correct coerce methods to data.frame
	Some minor changes in the documentation
-Version 0.0.1
	First version of life contingencies
