Switch from glide to dep

[bkochendorfer]

Solves #431

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[ideahitme]

is the issue with repo-infra resolved ? (I saw it being mentioned in the original post)

[bkochendorfer]

This issue still exists with the kazel package but I was able to use the ignore section in go dep to ignore that particular component. The overall result is a much smaller diff with the same result.

[linki]

lgtm

[njuettner]

lgtm