always send bot disconnection to lila-ws
always send bot disconnection to lila-ws

to keep the connection count accurate in src/main/scala/RoundCrowd.scala

requires a lila-ws deploy

luanlv/lila,arex1337/lila,arex1337/lila,luanlv/lila,arex1337/lila,luanlv/lila,luanlv/lila,arex1337/lila,arex1337/lila,luanlv/lila,luanlv/lila,arex1337/lila,luanlv/lila,arex1337/lila