Merge remote-tracking branch 'upstream/master'
Merge branch 'dev' of https://github.com/HAYASAKA-Ryosuke/botti into dev
Merge branch 'dev' of https://github.com/SugimotoSohei/botti into dev
import RPI
change rpi
refactoring
Merge pull request #25 from HAYASAKA-Ryosuke/changerpi

Changerpi