basic function of competition.
apply personal score.
Merge remote-tracking branch 'origin/regist'
basic function of competition.
apply personal score.
bugfix.
Merge branch 'master' of https://github.com/ghilbut/lgcodechallenger
Merge remote-tracking branch 'origin/regist'
Merge branch 'master' of https://github.com/ghilbut/lgcodechallenger
Bug fix of state observer