Remove domain

I want to set the precedent of non-essential features being diabled by default. Fraction should be the minimum viable product and shouldn't have any fluff installed. Instead, I want to have a package/plugin system so that users can have control of which features are enabled.
Merge pull request #16 from christianbundy/remove-domain

Remove domain
Merge pull request #17 from christianbundy/add-contributing-guideline

Create CONTRIBUTING.md