The word of the sibling node is generated with the word of the parent node and the charactor of the sibling node.
Fix: Access the element of "(*Predictor).valueSeq" with "(*Trie).Value - 1".
Fix: Deserialize "Predictor" correctly. Replace "maxCount" with "sibling" for "(*Value).Sibling".
Fix: Avoid to push a word which count is zero to candidates.
Merge branch 'feature/generate-canididates'