Some help

First commit shows the vars which should be allowed to be configured generally.

```json
{
  "Depends": "",
  "Priority": "extra",
  "Section": "devel",
  "Status": "unreleased",
  "Build-Depends": "debhelper (>= 9.1.0), golang-go"
}
```

All the above vars should be able to be overwritten. I hope you do this soon.

---

Second commit fixes a bug in the process of doing the below.

I need the source.changes file to upload the source package to launchpad. This is the process I follow:

```bash
$ cd src/github.com/pksunkara/whitespaces
$ goxc pkg-source
$ cd 1.0.0/source-deb

$ tar -xvf *.debian.tar.gz
$ debuild -S -sa

$ dput ../*_source.changes
```

But when I upload the source.changes to launchpad, it doesn't compile.