Updated glibc preview website

[Carlos O'Donell]

The updated glibc preview website can be found here:

http://sourceware.org/glibc/preview/

Changes since last update:
- Updated news entries.
- Added descriptions for all the mailing-lists including the new libc-help.
- Allow users to subscribe to libc-help.
- Removed left and right columns, and made center column bigger.

OK to make this live?

Cheers,
Carlos.
-- 
Carlos O'Donell
CodeSourcery
carlos@codesourcery.com
(650) 331-3385 x716