WIP. This should eventually become autocompleter widget which completer Lucene Query Language (or subset of it).
e.g. user has written name:Juho* so now autocompleter would show that next
user should write/select AND or OR and then add another field-term -pair.
Currently there is ebnf for subset of Lucene Query Language which Jison uses. AST-tree is then preprocessed...
npm install
node index.js "field1:term1 OR field2:term2 OR field3:term3"
node index.js --process "field1:term1 OR field2:term2 OR field3:term3"
grunt