Replace gox with goreleaser

[kishaningithub]

Go Releaser lets you do release management (generation of binaries, rpms, debs, brew taps, change logs etc) with a single yaml file.
You can also put in godownloader to generate an install script that can be used for downloading release binaries from github releases. It is made by the same goreleaser team

For inspiration you can take a look at the awesome golangci-lint project

Bottom line: Installation and release management becomes way cooler 😎

[simeji]

@kishaningithub
I replaced gox with goreleaser.
d613a0d
I think GoReleaser is a very cool tool! Thx ;)