0.6:
- Much more testing (with geneSrF application)
- Fixed bug in varSelRF when passing an already fitted forest.
- Changed randomVarImpsRFplot to user default colors friendlier for
  color-blind people.
- Fixed problem when running plots in non-interactive sessions.
- Fixed warnings with R-2.4.0

0.5-4:
- Seed of SPRNG is the default of Snow.
- summary.varSelRFBoot: fixed usage of "plotFreqs" (non existing variable).