github-api pinned to 3.1.0 tarball

[jayvdb]

package.json currently has

"github-api": "https://github.com/github-tools/github/archive/v3.1.0.tar.gz",

https://www.npmjs.com/package/github-api only has v3.0.0

However there are not many commits since v3.0.0.
github-tools/github@v3.0.0...master

If none of those fixes are needed for this app, the dependency could be downgraded to v3.0.0 but allow new versions as they are properly released.

[blazeu]

Removed in #33

[jayvdb]

Still would be nice to know whether it was necessary to use v3.1.0 or not.