Clean up the way we handle our script constants.
Since most of them come from source anyway we now export them directly into the scripting engine to ensure that they use the correct values.
The main benefits are that you users don't have to fear that we forget to adjust something according to source changes, if you use the constants in your scripts that is, and we developers do not have to think about updating them anyway. It also guarantees that constants that used wrong values before this use the correct values that are defined source side.
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