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- Document pensionTAble in readme
- remove wildcard reference
- Remove non-ascii characters
- Break long lines
- document undocumented function parameters

CRAN requires examples for all functions => Start adding them.
Export and document deathProbabilitiesIndividual and periodDeathProbabilitiesIndividual

Add function mortalityImprovement to calculate age-specific yearly log-mortality improvements (aka. mortality trends)