Changes in version 0.1.2                        

    o   set `stringsAsFactors=FALSE` in data.frames

                        Changes in version 0.1.1                        

    o   fix bug in `update` method (no slaughter == no births)

                 Changes in version 0.1.0 (2016-05-15)                  

    o   first commit to CRAN

                        Changes in version 0.0.6                        

    o   rename intervention functions

    o   update help files

    o   add argument `annotate` to `plot.cystiSim`

                        Changes in version 0.0.5                        

    o   add `elim` method for `cystiSim` objects

    o   fix bug in `exp_decay`

                        Changes in version 0.0.4                        

    o   fix bug in definition of `slaughter.args`

    o   fix subsetting bug in `do_oxf_vac`

                        Changes in version 0.0.3                        

    o   various CRAN error/warning/note fixes

    o   change default `min.age` in `do_oxf` to 1

    o   introduce `do_oxf_vac` function

                        Changes in version 0.0.2                        

    o   introduce `magrittr` style model definitions

    o   introduce functionalities and methods for multiple `cystiSim` simulations

    o   introduce functionalities for fitting models to data

    o   update model to make `slaughter` function generic

                        Changes in version 0.0.1                        

    o   the first version