fix: fixed worker thread issue per <https://github.com/nodejs/node/issues/21783> (closes #19) (#20)
fix: fixed worker thread issue per <https://github.com/nodejs/node/issues/21783> (closes #19) (#20)

Great stuff :+1: 
hthetiot/node-snowball,hthetiot/node-snowball,hthetiot/node-snowball,hthetiot/node-snowball