A few very minor fixes.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/nhanesaccel@50 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Removed tcltk package dependency.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/nhanesaccel@51 edb9625f-4e0d-4859-8d74-9fd3b1da38cb