[ANNOUNCE] Hadoop release 0.20.0 available

[Nigel Daley]

Release 0.20.0 contains many improvements, new features, bug fixes and  
optimizations.

For Hadoop release details and downloads, visit:
http://hadoop.apache.org/core/releases.html
Hadoop 0.20.0 Release Notes are at
http://hadoop.apache.org/core/docs/r0.20.0/releasenotes.html

Thanks to all who contributed to this release!

Nigel