Version Updated to a Rounded Number.
Version Updated to a Rounded Number.

We'll use this number to determinate the code to be used
in quiz restore making these assumptions:

- backup_version < 2005043000, old quiz version.
- backup_version >=2005043000, new quiz version.

This will cover near every backup in the world, only
some backups generated last week will be wrong but I
think we can ignore them (we are in alpha stage).

dilawar/moodle