OSGeo Journal Volume 1 GDAL Update

This is a brief GDAL announcements item to go in  http://wiki.osgeo.org/index.php/Journal_Volume_1

Rough notes:

• 1.4.0 release, and highlights.
• 1.4.1 bug fix release, and the concept of GDAL stable branches.
• migration to trac/subversion, help of hobu, user wiki, osgeo server for website/downloads.
• project sponsors.
• Mateusz working on maintenance