[xwiki-users] column name in LiveTable rendered by documents macro

Hello all, I've changed the columns that are rendered in my space index by adding a "columns" attribute as described by the article here http://extensions.xwiki.org/xwiki/bin/view/Extension/Documents+Macro and the column I added does show up as expected (doc.creator), but the header column for my added columns label is "platform.index.doc.creator" I'd like to change it to "Creator" but nothing I do seems to work..any help is greatly appreciated.