added proof of concept for optmization of the timings estimates via the function mapping the estimated value of lambda (in the Poisson models) to the days since infection: the parameter epsilon is the mutation rate per generation, and it is by defualt 2.16e-05.
added proof of concept for optmization of the timings estimates via the function mapping the estimated value of lambda (in the Poisson models) to the days since infection: the parameter epsilon is the mutation rate per generation, and it is by defualt 2.16e-05.

pedlefsen/hiv-founder-id,pedlefsen/hiv-founder-id,pedlefsen/hiv-founder-id