Combine horizontal scaling into font-size for text parts so that they don't clip into their neighbours.
Combine horizontal scaling into font-size for text parts so that they don't clip into their neighbours.

Fixes #15

Dador/libjass,joshuabrown-ellation/libjass,Arnavion/libjass,joshuabrown-ellation/libjass,joshuabrown-ellation/libjass,Dador/libjass,Arnavion/libjass,Dador/libjass,Arnavion/libjass