MeCabで顔文字を優先する
:bug: fix problem about using mecab dic path
Add handy mecab script

Execute MeCab with following features:

- character normalization (half-with Katakana -> full-with Katakana)
- Detail Information outputting (connection cost etc.)
Merge pull request #56 from kuhaku/#10-enrich_mecabdic

#10 enrich mecabdic