kumano-branch
change "a" -> "c"
change "a" -> "d"
Merge branch 'release'

Conflicts:
	README.md
change "e"
kumano-merge
features/kumano-branch
cherry-pick
Merge branch 'master' into features/kumano-branch

Conflicts:
	README.md
Merge branch 'features/kumano-branch'
Merge branch 'master' of github.com:kumanoryo/iketeru_git

Conflicts:
	README.md