Added several inputs to functions. Option to make column names and variable names/levels bold, and option to de-compress binary factor variables in regression models. Also modified d dataset so that sex and group are factor variables. 

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/tab@53 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Minor fix.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/tab@54 edb9625f-4e0d-4859-8d74-9fd3b1da38cb