VERSION 0.0.3:
* NEWS file added to the package
* fixed typo in message on initial loglikelihood value (when trace = T in ptmixed function)
* included exceptions and warnings for the case that maxit[1] and/or maxit[2] are set = 0 

VERSION 0.0.2:
* maxit argument default in function ptmixed changed to c(1e4, 100)
* function ptmixed does not require a time argument any more
* function that computes starting values improved
* added warnings that a simpler Poisson mixed model could provide a better fit
* added warning when initial estimate of the variance parameter is < 0.001

VERSION 0.0.1:
* first version of the package