[distr] fixed some issues with plotting of distributions xlim, ylim were not correctly passed on, same for col => now use dots.lowlevel ...
[distrMod] fixed issue with labeling in qqplot, set datax argument in case it is missing in returnlevelplot ...

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/distr@973 edb9625f-4e0d-4859-8d74-9fd3b1da38cb