Added module filter and elysia cron.

To ease the work of the admins :)

Latest version of Ding WAYF.

More dependencies moved from ding.make.

Import images from source.

Filter imported events on institution.

- Moved institution mapping to source list.
- Only import events that references an existing institution.

Fix for PHP 5.2 compatibility.

Upgraded event feeds module.

Tabroll dependency bugfix.

Updated theme.

Updated theme.