[dev-context] CGModules update: PresVoz version changed-name published.

Pablo Rodriguez submitted an update to the PresVoz package. Version number: changed-name License type: GNU General Public License Wants to be in ConTeXt distribution: yes Wants to be synced with CTAN: no Summary description: Generating presentations with voice. Announcement text: ---------------------------------------------------------------------- Remote revision: 8c80c7c, log message: fix buttons for portrait stages (hopefully!) ----------------------------------------------------------------------