[GRASS translations] Updating the PO files

[Markus Neteler]

Dear translators,

recently lots of new messages have been "activated" in GRASS
(the gettext macro added). Most of the current PO files
are not reflecting this.

I would like to update them but first your latest work
should go into CVS. Another option is that you update
the files of your language at your end.

Let me know what's more convenient for you.

Thanks

 Markus