resources-go/v1: moved to structure for gopkg.in

This code restructuring puts any v1 development in the v1 branch,
and no other version of the code exists in this branch. The easiest
way to use this branch is now through gopkg.in:

import "gopkg.in/cookieo9/v1/resources-go"
resources-go/v1: fixed Travis-CI config

Advantage of new structure for gopkg.in is that entire package is
in root of repo, so default go test script in Travis-CI works.
resources-go/v1: updated README.md

The new v1 branch is meant to be an API stable version of
the code while active development is elsewhere.

Also, update the travis badge URL.