Makefile: Add subtitle to PACKAGES.
Makefile: Add subtitle to PACKAGES.

This fixes #104

iwconfig/svtplay-dl,OakNinja/svtplay-dl,leakim/svtplay-dl,olof/svtplay-dl,leakim/svtplay-dl,OakNinja/svtplay-dl,olof/svtplay-dl,spaam/svtplay-dl,spaam/svtplay-dl,selepo/svtplay-dl,selepo/svtplay-dl,qnorsten/svtplay-dl,iwconfig/svtplay-dl,qnorsten/svtplay-dl,OakNinja/svtplay-dl,dalgr/svtplay-dl,leakim/svtplay-dl,dalgr/svtplay-dl