Migrate from Glide to dep

[janisz]

It looks like https://github.com/golang/dep is going to be a standard way of maintaining dependencies in Golang projects.

TODO

• [x] Genrate dep metada files (Gopkg.lock and Gopkg.toml)
• [x] Delete glide's metadata files (glide.lock and glide.yml)

Refs:

• https://github.com/kubernetes-incubator/node-feature-discovery/pull/76
• https://github.com/coreos/docs/issues/775
• https://github.com/inadarei/justgo/issues/4

[fortrieb]

Can i grep this issue?

[janisz]

@fortrieb It's yours :)