Keep deprecated classnames in stylesheets, for backwards compatibility

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5831 2fea6a4d-a838-0410-917b-93a53c48e9d2
Remove illogical `.modified` class from user list date column

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5832 2fea6a4d-a838-0410-917b-93a53c48e9d2