Create relative hyperlinks.

This will preserve the urls for GitHub Enterprise.
Merge pull request #43 from calavera/relative_hyperlinks

Create relative hyperlinks.
Use gopack to build and test the project.
Let go get to download gopack dependencies.
Make sure user API is v3 compatible.
Merge pull request #42 from octokit/v3_user_fix

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Speed up scripts by calling gopack only on bootstrap.
Merge pull request #44 from calavera/use_gopack

Use gopack to build and test the project.
Remove duplicated code for Request.
Allow to create and edit issues.
Make `sendRequest` private.
Revert `NewRequest` function.

It was only one more level of indirection.
Merge pull request #45 from calavera/create_edit_issues

Create and Edit issues.
Allow to update releases.

Set the input body for PATH requests.
Format releases_test back.
Merge pull request #46 from calavera/update_releases

Allow to update releases.
Add uploads service.

- Letting sawyer to handle requests to upload assets.
- Add `NewResponse` method to create responses from sawyer responses.
- Cleanup octokit.Request.
Remove header pointer.
Merge pull request #47 from calavera/upload_release_asset

Add uploads service.
Fix regexp for 2fa header.