Merge branch 'master' into yamamoto/graph
Merge branch 'master' into yamamoto/graph
modify graph
manual merge master
Merge branch 'yamamoto/graph' of https://github.com/ICTKyouikukei2013/portbacker into yamamoto/graph
fix crushing when a goal not having goal items
Merge pull request #249 from ICTKyouikukei2013/yamamoto/graph

Yamamoto/graph