Another huge update

- readded classic design
- changed design system (you can now have more than two designs) -> (you
can now add custom designs if you want to code your own. Just create a
file in the designs folder of bhud and begin with the correct function
name, inlcuding the next design index)
- readded 16x16 pictures
- improved sql-system (there is now just one sql table)
- removed death-message setting