LTS won't build with Go 1.7.3

[mboersma]

As seen on TV at https://ci.deis.io/job/test-ec2/4184/consoleFull#682192135502066c60b2236c09cc9bf8

Need to pin down why this happens now but everything was happy with Go 1.5.x.

[mboersma]

There was an ancient version of golint installed in the local $GOPATH. I worked around this by adding go get -u github.com/golang/lint/golint to the job definition, just before it runs the test script.

Now it's failing in a unit test for deisctl:

--- FAIL: TestNewClient (0.00s)
	fleet_test.go:187: failed initializing SSH client: timed out while initiating SSH connection

Update: above error should be fixed by #5109.

[mboersma]

Fixed in #5109.