DESCRIPTION: RUnit should only be suggested...
runit.testAll.R: in a lot of function calls "param" was replaced with "param = param"
nlFit.R: Output of the nlminb function was not catched correctly; that's why the unit tests failed...

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rmetrics@5566 5d4a7380-5c0c-0410-b446-d4a5018c0119