Prevent hanging transcoding processes on client disconnection
Prevent hanging transcoding processes on client disconnection

Fixes #55

hhm0/supysonic,nwokeo/supysonic,spl0k/supysonic,hhm0/supysonic,nwokeo/supysonic,hhm0/supysonic,spl0k/supysonic,nwokeo/supysonic,spl0k/supysonic,nwokeo/supysonic,nwokeo/supysonic