* renamed update.varray.ts to add.tsdata.varray (to avoid defining unrelated methods for the 'update' generic)
* renamed update.matrix and update.Matrix to add.data.matrix and add.data.Matrix
* removed dependency on TimeWarp package for parsing dates -- use base R functionality instead



git-svn-id: svn://svn.r-forge.r-project.org/svnroot/abind@60 edb9625f-4e0d-4859-8d74-9fd3b1da38cb