bump version to 0.2.1
bump version to 0.2.1

cliqz-oss/keyvi,narekgharibyan/keyvi,cliqz/keyvi,narekgharibyan/keyvi,cliqz-oss/keyvi,narekgharibyan/keyvi,cliqz/keyvi,narekgharibyan/keyvi,cliqz/keyvi,cliqz/keyvi,cliqz-oss/keyvi,cliqz-oss/keyvi