Ticket #6219: Use Ruby 2.3.4 instead of Ruby 2.3.1, since the former is newer and bundled inside Travis (so we do not need to compile it and can save 3 minutes)
Ticket #6219: Use Ruby 2.3.4 instead of Ruby 2.3.1, since the former is newer and bundled inside Travis (so we do not need to compile it and can save 3 minutes)

meedan/check-web,meedan/check-web,meedan/check-web