Add a script to generate a kml file with all active GSoC participants
Only the students, mentors, and organization admins that are 'active'
are exported. Students that do not have a project are not exported.
Reviewed-by: Sverre Rabbelier
Benjamin Niemann <pink at odahoda dot de>: Main developer of Python target.
Clinton Roy <clinton.roy at gmail dot com>: AST templates and runtime.