- 0.2.2:
    - 'init' is done better using `data.table`. Time reduced to less than 1/5 what is used to take.
    - 'init' has the new default of `local = FALSE`.

- 0.2.1:
    - fixed the 'plot', so that it does not mask the plot generic

- 0.2.0:
    - known issue with legend not appearning in knitr output
