Add version filed (Mastodon 1.3+) to the Instance type
language:gogo:-1.7-1.8-mastermatrix:allow_failures:-go:masterfast_finish:truebranches:only:-masterinstall:-go get github.com/urfave/cli-go get github.com/stretchr/testify/assert-go get github.com/sendgrid/rest-go get github.com/gorilla/websocket