 - added 'string' dictionary type support to compile option
 - added 'string' dictionary type support to compile option

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