Make the db config use the local user.

[cycomachead]

this will reduce config/install issues.

Uses the $USER variable when set.

Checklist

• [ ] I have read the Contribution & Best practices Guide.
• [ ] My branch is up-to-date with the upstream master branch.
• [ ] The tests pass locally with my changes.
• [ ] I have added tests that prove my fix is effective or that my feature works(if appropriate).
• [ ] I have added necessary documentation (if appropriate).

Short description of what this resolves/which issues does this fix?:

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Changes proposed in this pull request:

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