Add Go module support, cleanup Makefile#266

Merged

zakird merged 7 commits intozmap:masterfrom cpu:cpu-go-go-gadget-go-mod

Mar 7, 2019

+236,100-18

Commits on Mar 7, 2019

chore: ignore zlint-gtld-update build artifacts
Daniel
committed
chore: use lowercase import paths
Daniel
committed
project: add Go modules support.
Daniel
committed
project: clean up makefile, use go modules
Daniel
committed
chore: reformat travis.yml.
Daniel
committed
chore: remove vendor/ from gitignore
Daniel
committed
project: vendor go module deps
Daniel
committed