Implemented support for \be
Implemented support for \be

Fixes #3

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