metal-cli-v0.6.0-alpha2

Changelog

48e16fa Merge pull request #140 from equinix/displague-patch-1
acf96ea Merge pull request #143 from equinix/go-install-version
0a8ef1a Merge pull request #144 from equinix/fix-json
25df3e7 fix -o json which was ignored
cec62e9 fix typo in go get command
8e1d1f8 use go install rather that go get -u for installing via go
666a5c4 use runtime detected version for go install binaries