New Features
- varimp runs in parallel mode, optionally.
- weights in cforest can now be used to specify a matrix of
weights (number of observations times number of trees) to be
used for tree induction (this was always possible in
party::cforest. This was advertised in the documentation but
actually not implemented so far.
Bugfixes
- predict did not pay attention to xlev; this caused problems
when empty factor levels were removed prior to tree fitting.
- nodeprune may have got fitted terminal node numbers wrong,
spotted by Jason Parker.
