Ignore archived repos

[ianling]

Ignores archived repos when creating releases to make things go slightly faster.

	if count == 0 {
		return nil, nil
	}

... is a drive-by that prevents a crash due to gosuri/uiprogress#47 when no repos are found for a particular user/organization.

[dan9186]

I know they're small, but please science one thing at a time. One for the bug, and one for the performance boost. I'm not particularly interested in taking on any formatting changes that fmt or the linter doesn't care about.

[ianling]

Split everything up into separate commits @dan9186

The formatting change does seem to be coming from go fmt so I left it in, but I can drop the commit if you don't want it.