Moving Level Properties to SQL

Well basically starting to move all the level properties to a new
database. Keeping the save / load mechanism for the "old" one + level
files still to make sure that the server can overload it correctly. Will
remove these after a few weeks when the table can be dropped.
Injection Fixes

Well possible injections (not really usable because of "space" limit,
but to be absolutely sure.

Also removed several convertions from old databases