updated output file of one test script after adding argument "digits" to print.summary.maxLik() in the maxLik package

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/sampleselection@1613 d36ae590-6c38-44c5-9ba5-7217e93607d8
reduced the number of digits printed to the output file of one R script to make the result more robust to changes in software or hardware

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/sampleselection@1614 d36ae590-6c38-44c5-9ba5-7217e93607d8
censReg() now stops with an error message if there are no uncensored observations or there are no censored observations

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/sampleselection@1615 d36ae590-6c38-44c5-9ba5-7217e93607d8
revised test script for problematic commands

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/sampleselection@1616 d36ae590-6c38-44c5-9ba5-7217e93607d8