#52 Database version in database

[André Offringa]

Currently, the database- and configuration versions are stored in the configuration files. This is because in (stateless) php this would make sure performance was okay, but since .net Toes Online can remember its state, it is not necessary to perform a sql command each time a request is made when storing the database and configuration versions in the database. This would allow easier upgrades and easier installation of the system.