Adding scores field for end_game converted from Tenhou log.
Adding cannot_dahai to reach.
Merge pull request #12 from yuizumi/reach

Adding cannot_dahai to reach.
Merge branch 'master' of github.com:gimite/mjai
Handling logs with errros.
Merge branch 'master' of github.com:gimite/mjai
Fixing a bug that "scores" fields is missing if the game ends with ryukyoku in TenhouArchive.