Corrections to addToCohort function in CALIBERdatamanage. Checked that it works with data.table 1.9.4


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/caliberanalysis@44 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Updated CALIBERcodelists


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/caliberanalysis@45 edb9625f-4e0d-4859-8d74-9fd3b1da38cb