2.4 Add support for 'plausible values', ie, imputations of a small number
    of variables stored as columns in the same dataset as everything else

    RODBC support is deprecated. Please use the obdc package, which uses
    the DBI interface.  **Tell me if this is problem**

2.3 move vignettes for CRAN

2.2 as for 2.1

2.1 no actual changes, just changes in CRAN requirements

2.0 database-based imputation objects.

    option in MIcombine() to add complete-data degrees of freedom

1.0  First public release

