Checklist for the release of a new version :

    * Update lib/advene/core/version.py (version)
    * Run ./scripts/update_version to update svn rev + date
    * Update README.win32 (dependencies) + README
    * Generate installers/packages
    * Test
    * svn-copy from trunk to tags/n_version
    * Upload on gna.org
    * Announce on gna.org
    * Update downloads + news on the website
    * Send the announce on  advene-users, AVIS, vlc-devel, partners

