Visualising updates in the Translation Status page

The Translation Status page is very useful to check whether a page is translated or not in all the available languages. It would improve if it would show also information abut the updates. For instance, in documentation it may happen that the original page in English has been updated but the translations won't know it, nor integrate the changes.

Solutions that come to mind.

- Adding an "Updated" column to the table so you can see that the English version was last updated on 1/dec/2005 whilst the Spanish translation was last edited two months before... Suspicious.

- Adding a "Diff" column to the table. The Registry needs to be activated, to show changes of the last update. Useful.

Tjis would be an open door to a more complex functionality of managing translations.