Make SSA font names case-insensitive.
Make SSA font names case-insensitive.

JanX2/Perian,MaddTheSane/perian,JanX2/Perian,JanX2/Perian,MaddTheSane/perian,JanX2/Perian,JanX2/Perian,MaddTheSane/perian,MaddTheSane/perian,MaddTheSane/perian,MaddTheSane/perian