impimp() returns names of variables which are
imputed as an attribute (Paul Fink).
impimp_event() has a new argument
isEventList allowing to supply events now also
programmatically as list input (Paul Fink).
rbindimpimp stores variables containing
imputed values as character (Paul Fink).
rbindimpimp returns the names of the variables
which contain imputed values as an attribute (Paul Fink).
The internal levels guessing algorithm used by
impimp is able to cope with factor variables (Paul Fink).
New argument matchvars in impimp()
allowing customization of matching variables (Paul Fink).
Adding of NEWS file
Refactoring functions enabling translation from
sprintf(gettext()) to gettextf() (Paul Fink).