xfsprogs: update CHANGES file for release

Wed Mar 30 13:46:13 CDT 2011

Note that you'll also need to update debian/changelog for the release,
just copy an old one that says upstream update and mention that it fixes
bug 618730.

> +	- Polish translation update

please credit this one to Jakub Bogusz

> +	- xfs_io now supports the "fpunch" command, as well as a
> +	  "-p" flag to the "fallocate command.  Both implement hole
> +	  punching.

please credit this Josef Bacik

> +	- A number of other bug fixes

please credit these to Ajeet Yadav and 