Stripped Buildings down

This should help on server performance
Mission file update
Server files changed, hence we changed back to 1.7.6
server files
New server key

This means you can remove scrumbee.bikey, only addons that still uses it
is the hidechat addon. Will update this lather to use the new key
instead.
sql update

new vehicles spawn, and some adjusting to use new classes made.
Filter update