Don't set default license on script libraries.

* I assume that @Zren isn't finished with library pages but notated in TOS.md that libraries should state in their code what the license is for now.

Since we aren't reading any kind of meta it's going to make things a bit weird until those lib pages are filled out a bit more... so recommend turning this feature off on those pages until it is figured out.

Applies to #161 and tested on dev.