Add drone.yml file

Update Drone commands to match the bits of the Travis config we need

Signed-off-by: Andrew Page <admwiggin@gmail.com>
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Fix GOPATH after Drone mucks with it

Signed-off-by: Andrew Page <admwiggin@gmail.com>
Merge pull request #3 from tianon/drone

Fix GOPATH after Drone mucks with it
Remove travis.yml

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Merge pull request #255 from crosbymichael/add-drone

Add drone.yml file
Fix vet errors

Signed-off-by: Alexandr Morozov <lk4d4@docker.com>