Add editor settings files

The current code is inconsistent in many places;
these settings seem to be the closest match.

https://visualstudiogallery.msdn.microsoft.com/410e9b9f-65f3-4495-b68e-15567e543c58
http://editorconfig.org/
Merge pull request #501 from SLaks/cleanup

Add EditorConfig & Rebracer settings