Update ruby on Vagrant VM and related document#135

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kamataryo wants to merge 5 commits intotimwaters:masterfrom kamataryo:update-vagrant-ruby

+43-22

Commits on Aug 27, 2017

Update ruby on Vagrant VM and related document
kamataryo
committed

Commits on Aug 31, 2017

Commits on Oct 24, 2017

Some fix
kamataryo
committed

Commits on Nov 2, 2017

fix some
kamataryo
committed