More (paranoid) robustness in C code of read.compact()

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dplr@858 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Robustness of read.tucson() improved in case of unlikely input data

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dplr@859 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Translations

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dplr@860 edb9625f-4e0d-4859-8d74-9fd3b1da38cb