Lint sdk

Merge branch 'development' of https://github.com/threefoldtech/tfgrid… #19

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Run time

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Job	Run time
Run Lint (activation-service)	24s
Run Lint (grid-cli)	22s
Run Lint (grid-client)	24s
Run Lint (grid-proxy)	24s
Run Lint (gridify)	35s
Run Lint (monitoring-bot)	32s
Run Lint (rmb-sdk-go)	32s
Run Lint (user-contracts-mon)	24s
	3m 37s